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VulnerabilityPublished Updated

CVE-2025-61731: Golang 1.10 · Building a malicious file with cmd/go can cause can cause a write to an

Affects golang-1.10Source GCVE Database

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Authoritative record:CVE-2025-61731· High 7.8

Not known to be exploited · CVSS 7.8 High.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.04 LTSgolang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=resoluteOther threatsAffected
  • =1.23.10-1
Fixed in–
Ubuntu 26.04 LTSgolang-1.24pkg:deb/ubuntu/golang-1.24?arch=source&distro=resoluteOther threatsAffected
  • =1.24.4-1ubuntu1
  • =1.24.9-1
  • =1.24.13-2
Fixed in–
Ubuntu 25.10golang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=questingOther threatsAffected
  • =1.23.8-1
  • =1.23.10-1
  • =1.23.10-1ubuntu0.2
Fixed in–
Ubuntu 25.10golang-1.24pkg:deb/ubuntu/golang-1.24?arch=source&distro=questingOther threatsAffected
  • 1.24.2-1 – 1.24.4-1ubuntu1
4 affected builds
Fixed in–
Ubuntu 25.10golang-1.25pkg:deb/ubuntu/golang-1.25?arch=source&distro=questingOther threatsAffected
  • =1.25.0-0ubuntu1
  • =1.25.7-2~25.10.1
Fixed in–
Ubuntu 24.04 LTSgolang-1.21pkg:deb/ubuntu/golang-1.21?arch=source&distro=nobleOther threatsAffected
  • 1.21.1-1 – 1.21.9-1ubuntu0.1
11 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, avoid building untrusted Go source files that may contain malicious "#cgo pkg-config:" directives or restrict usage to trusted sources only.

Description

A vulnerability in Golang 1.10 and certain related versions allows an attacker to cause a write to an attacker-controlled file with partial control over its content. This occurs via the "#cgo pkg-config:" directive in Go source files, which can be manipulated to pass a "--log-file" argument to the pkg-config command, resulting in writes to arbitrary locations.

References

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