CVE-2026-3832
Gnutls: gnutls: security bypass allows acceptance of revoked server certificates via crafted ocsp response
Severity Score
3.7
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
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.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2026-03-09 CVE Reserved
- 2026-04-30 CVE Published
- 2026-05-11 CVE Updated
- 2026-05-11 First Exploit
- 2026-05-12 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-179: Incorrect Behavior Order: Early Validation
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-3832 | Third Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2445762 | Issue Tracking |
| URL | Date | SRC |
|---|---|---|
| https://gitlab.com/gnutls/gnutls/-/issues/1801 | 2026-05-11 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2026:13274 | 2026-05-04 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gnu Search vendor "Gnu" | Gnutls Search vendor "Gnu" for product "Gnutls" | - | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Hardened Images Search vendor "Redhat" for product "Hardened Images" | - | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Openshift Container Platform Search vendor "Redhat" for product "Openshift Container Platform" | 4.0 Search vendor "Redhat" for product "Openshift Container Platform" and version "4.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 10.0 Search vendor "Redhat" for product "Enterprise Linux" and version "10.0" | - |
Affected
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