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CVE-2026-42784VulnerabilityPublished Updated

Red Hat Security Advisory: rust-sequoia-sqv security update

Affects Red Hat rust-sequoia-sqvSource 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 updated rust-sequoia-sqv packages for Red Hat Enterprise Linux 10 and its Extended Update Support and Extended Life Cycle variants across multiple architectures. Users should apply these official patches promptly to remediate the vulnerability. Detailed update instructions are available in the Red Hat advisory article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the provided security update.

Description

A cryptographic integrity vulnerability (CVE-2026-42784) was identified in the sequoia-openpgp component used by the rust-sequoia-sqv OpenPGP signature verification program. This flaw involves key flag confusion that could compromise cryptographic integrity. Red Hat has issued an important security update for rust-sequoia-sqv in Red Hat Enterprise Linux 10 and its variants to address this issue.

References

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