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CVE-2026-42784VulnerabilityPublished Updated

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

Affects Red Hat rust-rpm-sequoia 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 patch for this vulnerability in rust-rpm-sequoia version 1.10.2.1-1.el10_2 for Red Hat Enterprise Linux 10 and its variants. Users should apply this update promptly to remediate the cryptographic integrity issue. For detailed update instructions, refer to Red Hat's advisory and article at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.

Description

A security update for rust-rpm-sequoia addresses a cryptographic integrity vulnerability in the sequoia-openpgp implementation caused by key flag confusion (CVE-2026-42784). This flaw could compromise cryptographic integrity. The update also includes bug fixes and enhancements related to error messaging and key trust validation. The issue affects Red Hat Enterprise Linux 10 and related variants. Red Hat has released patches to resolve this vulnerability.

References

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