Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update
Affects Red HatSource GCVE Database
Exploited in the wild · KEV due 10 Nov 2026 · fixed in Red Hat package updates : patch Red Hat github.com/google/brotli now.
Data as of 2 Nov 2026, 23:30 UTC
Thin evidence
One scorer or none| CNA (Google) | CVSS 4.0 | 9.2 |
|---|
- KEV deadline
- US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
- Patch
- Available – fixed in 1.2.1, 1.1.1, 1.0.10
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 22 Oct 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: evidence found.
Listed in CISA KEV 5 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by Google LLC
, 6 days before disclosure
CVE published
on cve.org
, t = 0
In Threat Radar
record ingested
, 4 days after disclosure
Added to CISA KEV (opens in a new tab)
exploitation confirmed
, 5 days after disclosure
KEV remediation due
US federal deadline
, 19 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Upgrade Brotli and github.com/google/brotli to 1.2.1, 1.1.1 or 1.0.10.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Brotligithub.com/google/brotli | Affected
| Fixed in
|
| Brotligithub.com/google/brotli | Affected
| Fixed in
|
| Brotligithub.com/google/brotli | Affected
| Fixed in
|
GitHubgithub.com/google/brotlipkg:github/github.com/google/brotliOther 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
Red Hat has released updated python3.12-brotli packages that fix the out-of-bounds write vulnerability. Users of Red Hat Ansible Automation Platform 2.5 on RHEL 8 and 9 should apply the provided updates as described in the official Red Hat advisory and product documentation. No alternative mitigations or workarounds are indicated; applying the official patch is the recommended remediation.
Description
Red Hat Ansible Automation Platform 2.5 includes a security fix for an out-of-bounds write vulnerability in the Google Brotli decoder library used by python3.12-brotli (CVE-2026-111497). This vulnerability could potentially lead to memory corruption. Red Hat has released updated packages for multiple architectures and operating system versions to address this issue.
References
- access.redhat.com/errata/RHSA-2026:94100 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5/html/release_notes/patch_releases (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2558973 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_94100.json (opens in a new tab)