High severity · published Feb 5, 2026
CVE-2025-61732
Potential code smuggling via doc comments in cmd/cgo
8.6
CVSS
0.5%
EPSS
No
On KEV
Description
A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling into the resulting cgo binary.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
cmd/cgo · Go toolchain
before 1.24.13; 1.25.0-0 before 1.25.7 · source: vendor
GO
GO · Golang
before 1.24.13; 1.25.0 before 1.25.7 · source: NVD
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.2 Advanced Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.6 Telecommunications Update Service · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.8 Telecommunications Update Service · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-61732
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-61732
Patch
https://go.dev/cl/734220
Issue Tracking
https://go.dev/issue/76697
Mailing List
https://groups.google.com/g/golang-announce/c/K09ubi9FQFk
Patch
https://pkg.go.dev/vuln/GO-2026-4433
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10104
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:12282