CVE-2026-3832— Gnutls: gnutls: security bypass allows acceptance of revoked server certificates via crafted ocsp response
Quick assessment
Affected
CVE-2026-3832
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
GnuTLS是GnuTLS开源的一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS存在安全漏洞，该漏洞源于处理多记录OCSP响应时的逻辑错误，可能导致远程攻击者通过特制OCSP响应使客户端错误接受被撤销的服务器证书。
Affected Version Matrix 22
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| None | None | < 3.8.13 |
affected |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 | 1790598593< * |
unaffected |
| Red Hat | Red Hat Discovery 2 | 1782159791< * |
unaffected |
1782166952< * |
unaffected | ||
| Red Hat | Red Hat Enterprise Linux 10 | 0:3.8.10-4.el10_2< * |
unaffected |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:3.8.9-9.el10_0.19< * |
unaffected |
| Red Hat | Red Hat Enterprise Linux 6 | any |
unaffected |
| Red Hat | Red Hat Enterprise Linux 7 | any |
unaffected |
| Red Hat | Red Hat Enterprise Linux 8 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 9 | 0:3.8.10-4.el9_8< * |
unaffected |
0:3.8.10-4.el9_8< * |
unaffected | ||
| Red Hat | Red Hat Hardened Images | 3.8.13-1.hum1< * |
unaffected |
| Red Hat | Red Hat OpenShift Container Platform 4 | any |
unknown |
any |
affected | ||
any |
affected | ||
| Red Hat | Red Hat Update Infrastructure 5 | 1781525684< * |
unaffected |
1781525671< * |
unaffected | ||
1781525693< * |
unaffected | ||
1781525739< * |
unaffected | ||
1787241211< * |
unaffected | ||
1787135742< * |
unaffected | ||
1787241260< * |
unaffected |
I. Basic Information for CVE-2026-3832
Vulnerability Information
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Vulnerability Title
Gnutls: gnutls: security bypass allows acceptance of revoked server certificates via crafted ocsp response
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不正确的行为次序：过早验证
Source: CVE Program / CVE List V5
Vulnerability Title
GnuTLS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GnuTLS是GnuTLS开源的一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS存在安全漏洞，该漏洞源于处理多记录OCSP响应时的逻辑错误，可能导致远程攻击者通过特制OCSP响应使客户端错误接受被撤销的服务器证书。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | - | 0 ~ 3.8.13 | - |
|
| Red Hat | Red Hat Enterprise Linux 10 | 0:3.8.10-4.el10_2 ~ * |
cpe:/o:redhat:enterprise_linux:10.2
|
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:3.8.9-9.el10_0.19 ~ * |
cpe:/o:redhat:enterprise_linux_eus:10.0
|
|
| Red Hat | Red Hat Enterprise Linux 9 | 0:3.8.10-4.el9_8 ~ * |
cpe:/a:redhat:enterprise_linux:9::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9 | 0:3.8.10-4.el9_8 ~ * |
cpe:/a:redhat:enterprise_linux:9::appstream
|
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 | 1790598593 ~ * |
cpe:/a:redhat:cert_manager:1.20::el9
|
|
| Red Hat | Red Hat Discovery 2 | 1782159791 ~ * |
cpe:/a:redhat:discovery:2::el9
|
|
| Red Hat | Red Hat Discovery 2 | 1782166952 ~ * |
cpe:/a:redhat:discovery:2::el9
|
|
| Red Hat | Red Hat Hardened Images | 3.8.13-1.hum1 ~ * |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat Update Infrastructure 5 | 1781525684 ~ * |
cpe:/a:redhat:rhui:5::el9
|
|
| Red Hat | Red Hat Update Infrastructure 5 | 1781525671 ~ * |
cpe:/a:redhat:rhui:5::el9
|
|
| Red Hat | Red Hat Update Infrastructure 5 | 1781525693 ~ * |
cpe:/a:redhat:rhui:5::el9
|
|
| Red Hat | Red Hat Update Infrastructure 5 | 1781525739 ~ * |
cpe:/a:redhat:rhui:5::el9
|
|
| Red Hat | Red Hat Update Infrastructure 5 | 1787241211 ~ * |
cpe:/a:redhat:rhui:5::el9
|
|
| Red Hat | Red Hat Update Infrastructure 5 | 1787135742 ~ * |
cpe:/a:redhat:rhui:5::el9
|
|
| Red Hat | Red Hat Update Infrastructure 5 | 1787241260 ~ * |
cpe:/a:redhat:rhui:5::el9
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
II. Public POCs for CVE-2026-3832
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-3832 (8)
-
-
-
-
🔗 RHSA-2026:13274 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
-
🔗 RHSA-2026:20613 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
-
-
-
Other References for CVE-2026-3832 (2)
IV. Related Vulnerabilities
V. Comments for CVE-2026-3832
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