Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Container Release Update
Affects Red HatSource GCVE Database
Not known to be exploited.
Data as of 31 Oct 2026, 20:20 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 27 May 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 31 Oct 2026.
What to do
AI-suggested
Red Hat has provided official fixes for this vulnerability in updated versions of the Ansible Automation Platform 2.5 containers and collections. Users should apply the updates to Ansible Lightspeed (version 2.5.250528) and related collections (ansible.controller 4.6.13, ansible.platform 2.5.20250528) as provided in the Red Hat advisory RHSA-2025:8221. Applying these updates will remediate the vulnerability.
Description
Red Hat Ansible Automation Platform 2.5 contains a security vulnerability identified as CVE-2025-43859, where the h11 HTTP library accepts some malformed Chunked-Encoding bodies. This issue affects several container components of the platform, including ansible-lightspeed-container and related chatbot and cloud services containers. Red Hat has released updates to address this vulnerability by updating Ansible Lightspeed and related collections to fixed versions.