CVE-2026-3832

Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security update

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.

Metrics

Severity
low
no public PoC known
3.7
Source: nvd-v3
52.5 %
High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
0.7 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-08-24 11:15 UTC
CWE-179

Weakness classes (CWE)

  • CWE-179Base

    Incorrect Behavior Order: Early Validation

    The product validates input before applying protection mechanisms that modify the input, which could allow an attacker to bypass the validation via dangerous inputs that only arise after the modification.

    cwe.mitre.org →

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. CVE Modified2026-09-01 13:19 UTC· secalert@redhat.com
    • Affected: Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/3xxx/CVE-2026-3832.json">CVE-2026-3832</a>
  2. CVE Modified2026-08-31 16:17 UTC· secalert@redhat.com
    • Affected: Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/3xxx/CVE-2026-3832.json">CVE-2026-3832</a>
    • Reference: https://access.redhat.com/errata/RHSA-2026:13274
    • Reference: https://access.redhat.com/errata/RHSA-2026:20612
    • Reference: https://access.redhat.com/errata/RHSA-2026:20613
  3. CVE Modified2026-08-31 16:17 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
    • Reference: https://gitlab.com/gnutls/gnutls/-/issues/1801
    • Reference: https://gitlab.com/gnutls/gnutls/-/issues/1801
    • Reference Type: https://gitlab.com/gnutls/gnutls/-/issues/1801 Types: Exploit, Issue Tracking, Vendor Advisory
  4. CVE Modified2026-08-21 13:17 UTC· secalert@redhat.com
    • Affected: …, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support (+14)…, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support (+14)
  5. CVE Modified2026-06-24 17:16 UTC· secalert@redhat.com
    • Reference: https://access.redhat.com/errata/RHSA-2026:29197
    • Affected: …, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support (+11)…, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support (+13)

Affected operating systems

  • linux

    ubuntu / coreutilsjammy

  • linux

    ubuntu / coreutilsnoble

  • linux

    ubuntu / coreutilsresolute

  • linux

    debian / debian_linux11.0

  • linux

    redhat / enterprise_linux10.0

  • linux

    redhat / enterprise_linux10.2

  • linux

    redhat / enterprise_linux6.0

  • linux

    redhat / enterprise_linux7.0

  • linux

    redhat / enterprise_linux8.0

  • linux

    redhat / enterprise_linux9.0

  • linux

    redhat / enterprise_linux9.8

  • linux

    redhat / enterprise_linux_for_els10.2

  • linux

    redhat / enterprise_linux_for_els8.10

  • linux

    redhat / enterprise_linux_for_els9.8

  • linux

    redhat / enterprise_linux_for_eus10.2

  • linux

    redhat / enterprise_linux_for_eus9.8

  • linux

    redhat / enterprise_linux_for_ibm_z_systems10.2

  • linux

    redhat / enterprise_linux_for_ibm_z_systems8.0_s390x

  • linux

    redhat / enterprise_linux_for_ibm_z_systems9.0_s390x

  • linux

    redhat / enterprise_linux_for_ibm_z_systems_els10.2

  • linux

    redhat / enterprise_linux_for_ibm_z_systems_els8.10

  • linux

    redhat / enterprise_linux_for_ibm_z_systems_els9.8

  • linux

    redhat / enterprise_linux_for_ibm_z_systems_eus10.2

  • linux

    redhat / enterprise_linux_for_ibm_z_systems_eus9.8

Affected products

Products and version ranges extracted from the vendor/CERT advisory. A range like „<4.14.6“ implies the update recommendation „upgrade to 4.14.6 or later“.

  • Apple

    iOS18.7.10

  • Apple

    iOS26.6.1

  • Apple

    iPadOS18.7.10

  • Apple

    iPadOS26.6.1

  • Apple

    macOSTahoe 26.6.2

  • bitnami

    jre1.9.0

  • bitnami

    nginx-gateway0.1.17

  • bitnami

    nginx-gateway-fabric1.3.0

  • bitnami

    postgresql15.0.0

  • bitnami

    postgresql16.0.0

  • bitnami

    postgresql17.0.0

  • bitnami

    postgresql18.0.0

  • bitnami

    python-min3.10.0

  • bitnami

    python-min3.11.0

  • bitnami

    python-min3.12.0

  • bitnami

    python-min3.13.0

  • bitnami

    python-min3.14.0

  • f5

    dos4.3.0 – 4.7.0

  • f5

    dos

  • f5

    nginx_gateway_fabric1.3.0 – 1.6.2

  • f5

    nginx_gateway_fabric2.0.0 – 2.5.1

  • f5

    nginx_ingress_controller3.5.0 – 3.7.2

  • f5

    nginx_ingress_controller4.0.0 – 4.0.1

  • f5

    nginx_ingress_controller5.0.0 – 5.4.1

References & sources

Linked CVEs

Show 93 more CVEs
IDCVE-2026-3832