Is CVE-2026-3832 in the CISA KEV catalog?

No. CVE-2026-3832 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-3832?

CVE-2026-3832 has a CVSS v3 base score of 3.7 (Low).

What is the EPSS score for CVE-2026-3832?

CVE-2026-3832 has an EPSS score of 0.72% (49th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3832?

Upgrade gnutls28 on debian 13 to 3.8.9-3+deb13u4 or later. Fixes are available for 36 affected products.

CVE & CISA-KEV Catalog

CVE-2026-3832

LOW

3.7

CVSS v3

NVD

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.

CWE-179

How to fix

Remediation Available

gnutls28Debian

Fixed in:3.8.9-3+deb13u4CVE-2026-3832

Fixed in:3.8.13-1CVE-2026-3832

gnutlsRocky

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:main@aarch64RHSA-2026:13274

Fixed in:main@srcRHSA-2026:13274

Fixed in:main@x86_64RHSA-2026:13274

Fixed in:main@noarchRHSA-2026:13274

gnutlsRed Hat / RHEL

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:main@x86_64RHSA-2026:13274

Fixed in:main@noarchRHSA-2026:13274

Fixed in:main@aarch64RHSA-2026:13274

Fixed in:main@srcRHSA-2026:13274

gnutls-c++Red Hat / RHEL

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-c++Rocky

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-c++-debuginfoRocky

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-c++-debuginfoRed Hat / RHEL

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-daneRocky

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-daneRed Hat / RHEL

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-dane-debuginfoRocky

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-dane-debuginfoRed Hat / RHEL

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-debuginfoRocky

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-debuginfoRed Hat / RHEL

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-debugsourceRed Hat / RHEL

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-debugsourceRocky

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-develRed Hat / RHEL

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-develRocky

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-fipsRocky

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-fipsRed Hat / RHEL

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-utilsRed Hat / RHEL

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-utilsRocky

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

gnutls-utils-debuginfoRocky

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

gnutls-utils-debuginfoRed Hat / RHEL

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

Fixed in:0:3.8.9-9.el10_0.19RHSA-2026:26409

Fixed in:0:3.8.10-4.el10_2RHSA-2026:20613

registry.redhat.io/discovery/discoveryRed Hat / RHEL

Fixed in:ui-rhel9@sha256:16b33ed961e598805d155db8fea7bb293fb8ef95ddd45169c61fbeb5a8944b6b_amd64RHSA-2026:29197

Fixed in:server-rhel9@sha256:ccd969d2710875e82896556e7b3c02e39147d03612452af6b0a916b656ce5b34_arm64RHSA-2026:29197

Fixed in:ui-rhel9@sha256:335f5d49155804969d193c3104fd144d7e499e2d5433965b217f379cbcf1cc75_arm64RHSA-2026:29197

Fixed in:server-rhel9@sha256:6a26bc89c61e7fad594399ceda8e170d66fa241d818eada7a12d9fec6bb08ecc_amd64RHSA-2026:29197

registry.redhat.io/discovery/discoveryRocky

Fixed in:ui-rhel9@sha256:335f5d49155804969d193c3104fd144d7e499e2d5433965b217f379cbcf1cc75_arm64RHSA-2026:29197

Fixed in:server-rhel9@sha256:6a26bc89c61e7fad594399ceda8e170d66fa241d818eada7a12d9fec6bb08ecc_amd64RHSA-2026:29197

Fixed in:ui-rhel9@sha256:16b33ed961e598805d155db8fea7bb293fb8ef95ddd45169c61fbeb5a8944b6b_amd64RHSA-2026:29197

Fixed in:server-rhel9@sha256:ccd969d2710875e82896556e7b3c02e39147d03612452af6b0a916b656ce5b34_arm64RHSA-2026:29197

registry.redhat.io/rhui5/cdsRed Hat / RHEL

Fixed in:rhel9@sha256:5c18f8336186fb1c9dbc1e710e91420ca3f5eca92b081cace3325585789f4825_amd64RHSA-2026:26319

Fixed in:kubernetes-rhel9@sha256:2958104c085c46561c9453784a06a36ab12a27e21ba1e732b4b30a092bb58805_amd64RHSA-2026:26319

registry.redhat.io/rhui5/cdsRocky

Fixed in:rhel9@sha256:5c18f8336186fb1c9dbc1e710e91420ca3f5eca92b081cace3325585789f4825_amd64RHSA-2026:26319

Fixed in:kubernetes-rhel9@sha256:2958104c085c46561c9453784a06a36ab12a27e21ba1e732b4b30a092bb58805_amd64RHSA-2026:26319

registry.redhat.io/rhui5/haproxyRocky

Fixed in:rhel9@sha256:66ccfb245bd6461e49aa0c84742710b557b9924baaef38e02904c6fd2f8db0c5_amd64RHSA-2026:26319

registry.redhat.io/rhui5/haproxyRed Hat / RHEL

Fixed in:rhel9@sha256:66ccfb245bd6461e49aa0c84742710b557b9924baaef38e02904c6fd2f8db0c5_amd64RHSA-2026:26319

registry.redhat.io/rhui5/installerRed Hat / RHEL

Fixed in:rhel9@sha256:4b793b24511377dd18beae2f85792e8b2af0c615837155137a62f65e171ca0d7_amd64RHSA-2026:26319

registry.redhat.io/rhui5/installerRocky

Fixed in:rhel9@sha256:4b793b24511377dd18beae2f85792e8b2af0c615837155137a62f65e171ca0d7_amd64RHSA-2026:26319

registry.redhat.io/rhui5/rhuaRocky

Fixed in:rhel9@sha256:a79dde325d7229002a36a0a8ad75ae8c25e96004a9e5f0b90c51fc335460dccf_amd64RHSA-2026:26319

registry.redhat.io/rhui5/rhuaRed Hat / RHEL

Fixed in:rhel9@sha256:a79dde325d7229002a36a0a8ad75ae8c25e96004a9e5f0b90c51fc335460dccf_amd64RHSA-2026:26319

gnutls28Ubuntu

Fixed in:3.7.3-4ubuntu1.9USN-8284-1

Fixed in:3.8.3-1.1ubuntu3.6USN-8284-1

Fixed in:3.8.9-3ubuntu2.2USN-8284-1

libgnutls30Ubuntu

Fixed in:3.7.3-4ubuntu1.9USN-8284-1

libgnutls30t64Ubuntu

Fixed in:3.8.3-1.1ubuntu3.6USN-8284-1

Fixed in:3.8.9-3ubuntu2.2USN-8284-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.72%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Exploit1

gitlab.com

Third-Party Advisory3

Other references5

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-24.