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CVE Record

CVE-2026-3832: Gnutls: gnutls: security bypass allows acceptance of revoked server certificates via crafted ocsp response

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.

LowCVSS 3.7Not KEV-listedUpdated
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Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-179: Exact CWE lookup

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description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2026-3832 mapping review

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Vulnerability profileCVE Program record
Severity
Low
CVSS
3.7 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
19Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
3.7CVSS 3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N2.21.4redhat

Vulnerability scoring details

Base CVSS 3.1 score

3.7Low
CVSS 3.1 vector shape for CVE-2026-3832Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Reported to Red Hat.

  2. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  3. Source timelineredhat

    Made public.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendorgnutlsgnutls, 0unaffected
Red HatRed Hat Enterprise Linux 10gnutls, 0:3.8.10-4.el10_2affected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Supportgnutls, 0:3.8.9-9.el10_0.19affected
Red HatRed Hat Enterprise Linux 9gnutls, 0:3.8.10-4.el9_8affected
Red HatRed Hat Enterprise Linux 9gnutls, 0:3.8.10-4.el9_8affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/jetstack-cert-manager-acmesolver-rhel9, 1791371080affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/jetstack-cert-manager-rhel9, 1791371069affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/cert-manager-operator-rhel9, 1791788287affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/cert-manager-operator-bundle, 1791970484affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/jetstack-cert-manager-acmesolver-rhel9, 1791459707affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/jetstack-cert-manager-rhel9, 1791459711affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/cert-manager-istio-csr-rhel9, 1791459759affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/cert-manager-operator-rhel9, 1789029076affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/cert-manager-operator-bundle, 1791966259affected
Red HatCert Manager support for Red Hat OpenShift release 1.20cert-manager/cert-manager-trust-manager-rhel9, 1790598593affected
Red HatRed Hat Discovery 2discovery/discovery-server-rhel9, 1782159791affected
Red HatRed Hat Discovery 2discovery/discovery-ui-rhel9, 1782166952affected
Red HatRed Hat Hardened Imagesgnutls-main, 3.8.13-1.hum1affected
Red HatRed Hat Update Infrastructure 5rhui5/cds-rhel9, 1781525684affected
Red HatRed Hat Update Infrastructure 5rhui5/haproxy-rhel9, 1781525671affected
Red HatRed Hat Update Infrastructure 5rhui5/installer-rhel9, 1781525693affected
Red HatRed Hat Update Infrastructure 5rhui5/rhua-rhel9, 1781525739affected
Red HatRed Hat Update Infrastructure 5rhui5/cds-kubernetes-tp-rhel9, 1787241211affected
Red HatRed Hat Update Infrastructure 5rhui5/installer-tp-rhel9, 1787135742affected
Red HatRed Hat Update Infrastructure 5rhui5/rhua-tp-rhel9, 1787241260affected
Red HatRed Hat Enterprise Linux 6gnutlsunaffected
Red HatRed Hat Enterprise Linux 7gnutlsunaffected
Red HatRed Hat Enterprise Linux 8gnutlsaffected
Red HatRed Hat OpenShift Container Platform 4openshift4/ose-hypershift-rhel9unknown
Red HatRed Hat OpenShift Container Platform 4openshift/ose-rhel-coreos-8affected
Weakness

CWE details

CWE-179

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-179 · source CWE mapping

Incorrect Behavior Order: Early Validation

Incorrect Behavior Order: Early Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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