Gnutls: gnutls: security bypass allows acceptance of revoked server certificates via crafted ocsp response
CVSS score
3.7
EPSS probability
%0.9
Risk score
0.0
Published
5 mo ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-3832 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
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.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-3832 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | redhat | gnutls | View |
| 2 | Red Hat | Red Hat Enterprise Linux 10 | View |
| 3 | Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | View |
| 4 | Red Hat | Red Hat Enterprise Linux 9 | View |
| 5 | Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 | View |
| 6 | Red Hat | Red Hat Discovery 2 | View |
| 7 | Red Hat | Red Hat Discovery 2 | View |
| 8 | Red Hat | Red Hat Hardened Images | View |
| 9 | Red Hat | Red Hat Update Infrastructure 5 | View |
| 10 | Red Hat | Red Hat Update Infrastructure 5 | View |
| 11 | Red Hat | Red Hat Update Infrastructure 5 | View |
| 12 | Red Hat | Red Hat Update Infrastructure 5 | View |
| 13 | Red Hat | Red Hat Update Infrastructure 5 | View |
| 14 | Red Hat | Red Hat Update Infrastructure 5 | View |
| 15 | Red Hat | Red Hat Update Infrastructure 5 | View |
| 16 | Red Hat | Red Hat Enterprise Linux 6 | View |
| 17 | Red Hat | Red Hat Enterprise Linux 7 | View |
| 18 | Red Hat | Red Hat Enterprise Linux 8 | View |
| 19 | Red Hat | Red Hat OpenShift Container Platform 4 | View |
| 20 | gnu | gnutls | View |
| 21 | redhat | hardened images | View |
| 22 | redhat | openshift container platform | View |
| 23 | redhat | enterprise linux | View |
| 24 | redhat | enterprise linux | View |
| 25 | redhat | enterprise linux | View |
| 26 | redhat | enterprise linux | View |
| 27 | redhat | enterprise linux | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 3.7 | CVSS V31 | LOW | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | NVD |
| 3.7 | CVSS V3_1 | LOW | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | CVE CNA |
| 3.7 | CVSS 3.x | — | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U | Microsoft MSRC |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-3832 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-3832 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
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Vulnerability in GNU Inetutils
Vulnerability in N/a
Vulnerability in N/a
Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.enginteksut.com.tr/api/v1/intel/cves/CVE-2026-3832"