CVE-2025-27144: osbuild-composer security update
Affects osbuild-composerSource GCVE Database
Not known to be exploited : upgrade to 134.1-3.el10_0.alma.1 when convenient.
Data as of 4 Nov 2026, 18:42 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
- Patch
- Available – fixed in 134.1-3.el10_0.alma.1
Exploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2025
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 4 Nov 2026.
What to do
Upgrade the AlmaLinux to 134.1-3.el10_0.alma.1.
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| AlmaLinux 10osbuild-composer | Affected
| Fixed in
|
| AlmaLinux 10osbuild-composer-core | Affected
| Fixed in
|
| AlmaLinux 10osbuild-composer-worker | 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 security update fixing this vulnerability is available and should be applied. The fixed version is 134.1-3.el10_0.alma.1. Administrators should update osbuild-composer to this version or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Description
A moderate severity vulnerability (CVE-2025-27144) affects osbuild-composer, a service used to build customized OS artifacts including VM images and OSTree commits. The vulnerability is in the go-jose library used by osbuild-composer, where parsing is vulnerable to a denial of service condition. This issue could potentially disrupt the service's ability to build or upload images. A security update fixing this vulnerability is available in version 134.1-3.el10_0.alma.1.