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CVE-2026-42784VulnerabilityPublished Updated

Red Hat Security Advisory: rust-sequoia-sq security, bug fix, and enhancement update

Affects Red Hat rust-sequoia-sq security,Source GCVE Database

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Authoritative record:CVE-2026-42784· High 7.4

Not known to be exploited · CVSS 7.4 High.

Data as of 3 Nov 2026, 18:58 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Ansible Automation Platform 2.6 for RHEL 9python3.12-pysequoiaAffected–Fixed in–
Red Hat Enterprise Linux 10rust-rpm-sequoiaAffected–Fixed in–
Red Hat Enterprise Linux 10rust-sequoia-sqvAffected–Fixed in–
Red Hat Enterprise Linux 10rust-sequoia-sqAffected–Fixed in–
Red Hat Enterprise Linux 9rust-rpm-sequoiaAffected–Fixed in–
Red Hat Cost Management On-Premise 1costmanagement/costmanagement-ui-rhel10Affected–Fixed in–

AI-suggested

Red Hat has released an official security update that fixes the vulnerability. Users of Red Hat Enterprise Linux 10 should apply the rust-sequoia-sq package update as described in Red Hat advisory RHSA-2026:76737. The update is available for all supported architectures and variants of RHEL 10. No additional mitigations are required beyond applying the official patch.

Description

A security vulnerability (CVE-2026-42784) affecting the sequoia-openpgp component of the rust-sequoia-sq package in Red Hat Enterprise Linux 10 has been addressed. The flaw involves a cryptographic integrity compromise caused by key flag confusion. Red Hat has released an important security update to fix this issue along with other bug fixes and enhancements. The update is available for multiple architectures and variants of Red Hat Enterprise Linux 10.

References

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