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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-96512

CVE-2026-96512: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh7.8

    High [CVE-2026-96512] TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization

    CVE-2026-96512Source published Source updated

    TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization. Red Hat rates this important (CVSS 7.8). Weakness: CWE-863. Red Hat lists fixing advisory RHSA-2026:75571 with package sudo-0:1.9.17-10.p2.el10_2.7, sudo-0:1.9.17p2-3.el9_8.3, sudo-main-1.9.17-16.p2.2.hum1, sudo-0:1.9.5p2-2.el8_10. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.

    Related products — impact not confirmed
    • Red Hat Enterprise Linux 10
    • Red Hat Enterprise Linux 9
    • Red Hat Enterprise Linux 8
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • sudo-0:1.9.17-10.p2.el10_2.7
    • sudo-0:1.9.17p2-3.el9_8.3
    • sudo-main-1.9.17-16.p2.2.hum1
    • sudo-0:1.9.5p2-2.el8_10

    1 more entries in the full advisory.

    Mitigation guidance
    • Append the 'Z' timezone suffix to all NOTBEFORE and NOTAFTER timestamps in sudoers rules. For example, change 'NOTAFTER=20261231235959' to 'NOTAFTER=20261231235959Z'. Timestamps with the 'Z' suffix are interpreted as UTC via timegm() and are not affected by the TZ environment variable. Administrators can audit their sudoers configuration with: grep -rE 'NOT(BEFORE|AFTER)=' /etc/sudoers /etc/sudoers.d/ and verify that all timestamps end with 'Z'.

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