> CVE-2026-3783

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PUBLISHED
2026-03-11 11:16
MODIFIED
2026-03-11 11:16
EPSS (Prob. Exploit)
0.50%
Top 57.3%
DATA SOURCES:
NVD 🔗 2026-03-11 RED HAT 🔗 2026-03-15 FIRST EPSS 🔗 2026-11-08 OSV 🔗 2026-11-08 MSRC 🔗 2026-11-02

> DESCRIPTION

When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one.

> AFFECTED_PRODUCTS

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

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: curl security update
An update for curl is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVS...
Red Hat Security Advisory: curl security update
An update for curl is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CV...
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: 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: Red Hat Update Infrastructure 5.3 security update
The latest release of Red Hat Update Infrastructure. For more details, see the product documentation.
Red Hat Security Advisory: curl security update
An update for curl 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 Vulner...
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: cert-manager Operator for Red Hat OpenShift 1.20.1
cert-manager Operator for Red Hat OpenShift 1.20.1
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: cert-manager Operator for Red Hat OpenShift 1.20.1
cert-manager Operator for Red Hat OpenShift 1.20.1
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: cert-manager Operator for Red Hat OpenShift 1.20.1
cert-manager Operator for Red Hat OpenShift 1.20.1
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: 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 1.17.1
cert-manager Operator for Red Hat OpenShift 1.17.1
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: curl security update
An update for curl 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 Vulnera...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

token leak with redirect and netrc

AFFECTED PACKAGES:
Unknown / Unknown
221 versions affected
ALIASES:
CURL-CVE-2026-3783

> HISTORIQUE DES MODIFICATIONS

Première apparition
11/03/2026 11:16
Source: NVD
📊 ENRICHISSEMENT 15/03/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 15/03/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 2 Dernière mise à jour: 7 months ago

> REFERENCES

https://curl.se/docs/CVE-2026-3783.html
https://curl.se/docs/CVE-2026-3783.json
https://hackerone.com/reports/3583983
http://www.openwall.com/lists/oss-security/2026/03/11/2
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