Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Affects Red Hat sigstore-goSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 3.1 Low.
Data as of 1 Nov 2026, 22:58 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 1 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10sigstore-gopkg:deb/ubuntu/sigstore-go?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu Pro 26.04 LTSsigstore-gopkg:deb/ubuntu/sigstore-go?arch=source&distro=esm-apps/resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available in cosign version 3.1.2-r1. Users of affected Red Hat Hardened Images and related products should update to this version to remediate the vulnerabilities. The vendor advisory RHSA-2026:47891 provides official guidance on applying the update. No additional mitigations are specified or required beyond applying the official patch.
Description
This update includes the following RPMs: cosign: * cosign-3.1.2-0.2.hum1 (aarch64, x86_64) * cosign-3.1.2-0.2.hum1.src (src) Security Fix(es): cosign: * CVE-2026-56852
References
- access.redhat.com/errata/RHSA-2026:47891 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-49834 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- images.redhat.com (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-54787 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_47891.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:44162 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56852 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_44162.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:44451 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_44451.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:47889 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_47889.json (opens in a new tab)
- github.com/sigstore/cosign (opens in a new tab)
- ubuntu.com/security/CVE-2026-54787 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-54787 (opens in a new tab)
- github.com/sigstore/sigstore-go/security/advisories/GHSA-wqqc-jjcq-vfxm (opens in a new tab)
- github.com/sigstore/sigstore-go/pull/642 (opens in a new tab)
- github.com/sigstore/sigstore-go/commit/4594ab4c779d08be1f4419803a8249188f35ed5f (opens in a new tab)
- github.com/sigstore/sigstore-go/releases/tag/v1.2.1 (opens in a new tab)