> CVE-2026-59885 [HIGH]

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PUBLISHED
2026-07-14 17:17
MODIFIED
2026-07-14 17:17
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.62%
Top 51.1%
DATA SOURCES:
NVD đź”— 2026-07-14 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-10-25 GITHUB đź”— 2026-11-05 OSV đź”— 2026-07-20 MSRC đź”— 2026-11-02

> DESCRIPTION

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. This issue is fixed in version 0.6.4.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
3.9
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-400 CWE-407

> CWE DETAILED DESCRIPTIONS

CWE-400: Uncontrolled Resource Consumption - The product does not properly control the allocation and maintenance of a limited resource. | CWE-407: Inefficient Algorithmic Complexity - An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Quay 3.15.7
Red Hat Quay 3.15.7 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update
An update is now available for Red Hat Ansible Automation Platform 2.6 Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update
An update is now available for Red Hat Ansible Automation Platform 2.5 Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: Red Hat Quay 3.9.25
Red Hat Quay 3.9.25 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.12.21
Red Hat Quay 3.12.21 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.10.25
Red Hat Quay 3.10.25 is now available with bug fixes.
Red Hat Security Advisory: Migration Toolkit for Applications
A new version of Migration Toolkit for Applications (MTA) is now available.
Red Hat Security Advisory: Red Hat AI Inference Server Model Optimization Tools 3.3.6 (CUDA)
Red Hat AI Inference Server Model Optimization Tools 3.3.6 (CUDA) is now available.
Red Hat Security Advisory: RHOAI 3.4.4 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.6 enhancement update
Updated Red Hat Enterprise Linux AI 3.3.6 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.6 enhancement update
Updated Red Hat Enterprise Linux AI 3.3.6 container disk images are now available.
Red Hat Security Advisory: RHOAI 2.25.11 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat Quay 3.16.6
Red Hat Quay 3.16.6 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.14.9
Red Hat Quay 3.14.9 is now available with bug fixes.
Red Hat Security Advisory: RHOAI 3.3.7 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat Quay 3.17.5
Red Hat Quay 3.17.5 is now available with bug fixes.
Red Hat Security Advisory: Release of components for Service Telemetry Framework 1.5.7
Release of components for the Service Telemetry Framework
Red Hat Security Advisory: Red Hat AI Inference 3.4.6 (rocm)
Red Hat AI Inference 3.4.6 (rocm) is now available.
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: RHOAI 2.25.12 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.

> GITHUB SECURITY ADVISORY

GHSA-8ppf-4f7h-5ppj HIGH

pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service

AFFECTED PACKAGES:
PIP / pyasn1
<= 0.6.3
Fixed in: 0.6.4

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service

AFFECTED PACKAGES:
Unknown / Unknown
24 versions affected
ALIASES:
GHSA-8ppf-4f7h-5ppj

> HISTORIQUE DES MODIFICATIONS

Première apparition
14/07/2026 17:17
Source: NVD
đź“Š ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-400: Uncontrolled Resource Consumption - The product does not properly control the allocation and maintenance of a limited resource. | CWE-407: Inefficient Algorithmic Complexity - An algorithm in...
Total des modifications: 1 Dernière mise à jour: 3 months ago

> REFERENCES

https://github.com/pyasn1/pyasn1/commit/45bdb19eb7df4b3780fe9c912c63e99bffc39dd9
https://github.com/pyasn1/pyasn1/releases/tag/v0.6.4
https://github.com/pyasn1/pyasn1/security/advisories/GHSA-8ppf-4f7h-5ppj
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