Red Hat Security Advisory: golang security update
Affects Red Hat golangSource GCVE Database
Not known to be exploited · CVSS 8.8 High : upgrade Red Hat go to 1.26.2 or 1.25.9 soon.
Data as of 30 Oct 2026, 20:25 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.26.2, 1.25.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 Apr 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 30 Oct 2026.
What to do
Upgrade cmd/go to 1.26.2 or 1.25.9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Go toolchaincmd/go | Affected
| Fixed in
|
| Go toolchaincmd/go | Affected
| Fixed in
|
Gocmd/gopkg:golang/cmd/goOther 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 an official security update (golang-1.19.13-25.el9_2) that addresses CVE-2026-27140. Users of Red Hat Enterprise Linux 9.2 should apply this update promptly to remediate the vulnerability. Detailed instructions for applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by Red Hat beyond applying the provided update.
Description
A security vulnerability (CVE-2026-27140) affecting the golang packages in Red Hat Enterprise Linux 9.2 allows arbitrary code execution via malicious SWIG file names. This flaw exists in the Go programming language compiler and its cmd/go tool. Red Hat has issued an important security update to address this issue. The vulnerability is rated with high severity by Red Hat Product Security. No public exploit code or in-the-wild exploitation is currently known. The update is available for multiple architectures and variants of Red Hat Enterprise Linux 9.2.