> CVE-2026-31790

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PUBLISHED
2026-04-07 22:16
MODIFIED
2026-04-07 22:16
EPSS (Prob. Exploit)
1.03%
Top 36.5%
DATA SOURCES:
NVD 🔗 2026-04-07 RED HAT 🔗 2026-04-12 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 MSRC 🔗 2026-11-02

> DESCRIPTION

Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer. Impact summary: The uninitialized buffer might contain sensitive data from the previous execution of the application process which leads to sensitive data leakage to an attacker. RSA_public_encrypt() returns the number of bytes written on success and -1 on error. The affected code tests only whether the return value is non-zero. As a result, if RSA encryption fails, encapsulation can still return success to the caller, set the output lengths, and leave the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been produced. If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA public key without first validating that key, then this may cause stale or uninitialized contents of the caller-provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext. As a workaround calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate() will mitigate the issue. The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> WEAKNESSES

CWE-754

> CWE DETAILED DESCRIPTIONS

CWE-754: Improper Check for Unusual or Exceptional Conditions - The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.2 release and security update
Red Hat JBoss Web Server 6.2.2 zip release is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 10, and Windows Server. Red Hat Product Security has r...
Red Hat Security Advisory: openssl security update
An update for openssl is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: openssl security update
An update for openssl is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: Red Hat Update Infrastructure 5.1 security update
The latest release of Red Hat Update Infrastructure. For more details, see the product documentation.
Red Hat Security Advisory: Insights proxy Container Image
Initial GA Release of Red Hat Insights proxy
Red Hat Security Advisory: openssl-fips-provider security update
An update for openssl-fips-provider is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Sco...
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP4 security update
Red Hat JBoss Core Services Apache HTTP Server 2.4.62 Service Pack 4 is now available. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability S...
Red Hat Security Advisory: openssl-fips-provider security update
An update for openssl-fips-provider is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Sc...
Red Hat Security Advisory: openssl-fips-provider security update
An update for openssl-fips-provider is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate....
Red Hat Security Advisory: Cost Management Metrics Operator Update
Cost Management Metrics Operator version 4.4.1 release.
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
An update for Red Hat Hardened Images RPMs is now available.
Red Hat Security Advisory: openssl-fips-provider security update
An update for openssl-fips-provider is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, and Red Hat Enterprise Li...
Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage
A Subscription Management tool for finding and reporting Red Hat product usage
Red Hat Security Advisory: Insights proxy Container Image
Initial GA Release of Red Hat Insights proxy
Red Hat Security Advisory: edk2 security, bug fix, and enhancement update
An update for edk2 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVS...
Red Hat Security Advisory: Cost Management Metrics Operator Update
Cost Management Metrics Operator version 4.4.2 release.
Red Hat Security Advisory: Red Hat Update Infrastructure 5.2 security update
The latest release of Red Hat Update Infrastructure. For more details, see the product documentation.
Red Hat Security Advisory: OpenShift Container Platform 4.19.40 bug fix and security update
Red Hat OpenShift Container Platform release 4.19.40 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: OpenShift Container Platform 4.14.70 bug fix and security update
Red Hat OpenShift Container Platform release 4.14.70 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: OpenShift Container Platform 4.15.67 bug fix and security update
Red Hat OpenShift Container Platform release 4.15.67 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...
Red Hat Security Advisory: OpenShift Container Platform 4.13.70 bug fix and security update
Red Hat OpenShift Container Platform release 4.13.70 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...
Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security update
A new set of Red Hat Update Infrastructure container images is now available as a Technology Preview in the Red Hat container registry.
Red Hat Security Advisory: openssl security update
An update for openssl is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vul...
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.20.1
cert-manager Operator for Red Hat OpenShift 1.20.1
Red Hat Security Advisory: Red Hat AI Base Images 3.4.3 (Neuron)
Red Hat AI Base Images 3.4.3 (Neuron) is now available.
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
cert-manager Operator for Red Hat OpenShift 1.18.2
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
cert-manager Operator for Red Hat OpenShift 1.18.2
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
cert-manager Operator for Red Hat OpenShift 1.18.2
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.2
cert-manager Operator for Red Hat OpenShift 1.17.2
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.2
cert-manager Operator for Red Hat OpenShift 1.17.2
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.2
cert-manager Operator for Red Hat OpenShift 1.17.2
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
cert-manager Operator for Red Hat OpenShift 1.18.2
Red Hat Security Advisory: openssl security update
An update for openssl is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vuln...
Red Hat Security Advisory: openssl security update
An update for openssl is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A C...
Red Hat Security Advisory: openssl security update
An update for openssl is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A C...
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (Neuron)
Red Hat AI Base Images 3.5.5 (Neuron) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (Neuron)
Red Hat AI Base Images 3.4.6 (Neuron) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (ROCm 7.14)
Red Hat AI Base Images 3.5.5 (ROCm 7.14) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (Spyre)
Red Hat AI Base Images 3.4.6 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (ROCm 6.4)
Red Hat AI Base Images 3.4.6 (ROCm 6.4) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.0.7 (TPU)
Red Hat AI Base Images 3.0.7 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (Spyre)
Red Hat AI Base Images 3.5.5 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (CPU)
Red Hat AI Base Images 3.4.6 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (CUDA 13.0)
Red Hat AI Base Images 3.5.5 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (CUDA 12.9)
Red Hat AI Base Images 3.5.5 (CUDA 12.9) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.0.7 (CUDA)
Red Hat AI Base Images 3.0.7 (CUDA) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (CUDA 13.0)
Red Hat AI Base Images 3.4.6 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (Gaudi)
Red Hat AI Base Images 3.4.6 (Gaudi) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (TPU)
Red Hat AI Base Images 3.4.6 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.0.7 (CPU)
Red Hat AI Base Images 3.0.7 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (Rubin)
Red Hat AI Base Images 3.5.5 (Rubin) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.0.7 (ROCm)
Red Hat AI Base Images 3.0.7 (ROCm) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (CUDA 12.9)
Red Hat AI Base Images 3.4.6 (CUDA 12.9) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (ROCm 7.1)
Red Hat AI Base Images 3.4.6 (ROCm 7.1) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (Gaudi)
Red Hat AI Base Images 3.5.5 (Gaudi) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.0.7 (Spyre)
Red Hat AI Base Images 3.0.7 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (CPU)
Red Hat AI Base Images 3.5.5 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (TPU)
Red Hat AI Base Images 3.5.5 (TPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.7 (CUDA 13.0)
Red Hat AI Base Images 3.4.7 (CUDA 13.0) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.0.8 (CPU)
Red Hat AI Base Images 3.0.8 (CPU) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.0.8 (CUDA)
Red Hat AI Base Images 3.0.8 (CUDA) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.5.6 (CUDA 12.9)
Red Hat AI Base Images 3.5.6 (CUDA 12.9) is now available.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> HISTORIQUE DES MODIFICATIONS

Première apparition
07/04/2026 22:16
Source: NVD
📊 ENRICHISSEMENT 01/05/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-754: Improper Check for Unusual or Exceptional Conditions - The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during ...
📊 ENRICHISSEMENT 12/04/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 23:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 22:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 21:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 20:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 19:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 18:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 17:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 16:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 15:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 14:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 13:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 12:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 11:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 10:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 09:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 08:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 07:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 06:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 05:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 04:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 03:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 02:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 01:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Moderate" }
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 00:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 08/04/2026 00:30
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 27 Dernière mise à jour: 6 months ago

> REFERENCES

https://github.com/openssl/openssl/commit/001e01db3e996e13ffc72386fe79d03a6683b5...
https://github.com/openssl/openssl/commit/abd8b2eec7e3f3fda60ecfb68498b246b52af4...
https://github.com/openssl/openssl/commit/b922e24e5b23ffb9cb9e14cadff23d91e9f7e4...
https://github.com/openssl/openssl/commit/d5f8e71cd0a54e961d0c3b174348f8308486f7...
https://github.com/openssl/openssl/commit/eed200f58cd8645ed77e46b7e9f764e284df37...
https://openssl-library.org/news/secadv/20260407.txt
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