CVE-2026-3832: Incorrect Behavior Order: Early Validation
A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a client with OCSP verification enabled may incorrectly accept a revoked server certificate, potentially leading to a compromise of trust.
AI Analysis
Technical Summary
CVE-2026-3832 is a vulnerability in the gnutls library where a logic error in handling multi-record OCSP responses can lead to a client incorrectly accepting a revoked server certificate during a TLS handshake if OCSP verification is enabled. This flaw could allow a remote attacker to compromise trust by bypassing certificate revocation checks. The vulnerability has a CVSS 3.1 base score of 3.7 (low severity). Red Hat has issued security advisories and updated gnutls RPM packages (version 3.8.13-1.hum1) for Red Hat Hardened Images and Red Hat Enterprise Linux 9 to fix this and other related issues.
Potential Impact
The vulnerability may allow a remote attacker to cause a client to accept a revoked server certificate, potentially undermining the trust model of TLS connections that rely on OCSP for certificate revocation checking. The impact is limited to confidentiality loss (partial trust compromise) without integrity or availability impact. The CVSS score is 3.7, indicating low severity.
Mitigation Recommendations
Red Hat has released updated gnutls packages (e.g., gnutls-3.8.13-1.hum1) that fix this vulnerability. Users of Red Hat Hardened Images and Red Hat Enterprise Linux 9 should apply these updates promptly. Detailed update instructions are available at https://images.redhat.com/ and https://access.redhat.com/articles/11258. No alternative mitigations or workarounds are specified. Patch status is confirmed by Red Hat advisories.
CVE-2026-3832: Incorrect Behavior Order: Early Validation
Description
A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a client with OCSP verification enabled may incorrectly accept a revoked server certificate, potentially leading to a compromise of trust.
CVSS v3.1
Score 3.7low
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-3832 is a vulnerability in the gnutls library where a logic error in handling multi-record OCSP responses can lead to a client incorrectly accepting a revoked server certificate during a TLS handshake if OCSP verification is enabled. This flaw could allow a remote attacker to compromise trust by bypassing certificate revocation checks. The vulnerability has a CVSS 3.1 base score of 3.7 (low severity). Red Hat has issued security advisories and updated gnutls RPM packages (version 3.8.13-1.hum1) for Red Hat Hardened Images and Red Hat Enterprise Linux 9 to fix this and other related issues.
Potential Impact
The vulnerability may allow a remote attacker to cause a client to accept a revoked server certificate, potentially undermining the trust model of TLS connections that rely on OCSP for certificate revocation checking. The impact is limited to confidentiality loss (partial trust compromise) without integrity or availability impact. The CVSS score is 3.7, indicating low severity.
Mitigation Recommendations
Red Hat has released updated gnutls packages (e.g., gnutls-3.8.13-1.hum1) that fix this vulnerability. Users of Red Hat Hardened Images and Red Hat Enterprise Linux 9 should apply these updates promptly. Detailed update instructions are available at https://images.redhat.com/ and https://access.redhat.com/articles/11258. No alternative mitigations or workarounds are specified. Patch status is confirmed by Red Hat advisories.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-03-09T13:44:37.841Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-3832","vendor":"Red Hat"}]
Threat ID: 69f3969dcbff5d861059085c
Added to database: 04/30/2026, 17:51:25 UTC
Last enriched: 07/14/2026, 08:01:57 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 131
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