CVE-2025-61725: Golang 1.10 · The ParseAddress function constructs domain-literal address components through repeated
Affects golang-1.10Source GCVE Database
Not known to be exploited · CVSS 7.5 High.
Data as of 5 Nov 2026, 12:51 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 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 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSgolang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgolang-1.24pkg:deb/ubuntu/golang-1.24?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.24pkg:deb/ubuntu/golang-1.24?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.25pkg:deb/ubuntu/golang-1.25?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgolang-1.21pkg:deb/ubuntu/golang-1.21?arch=source&distro=nobleOther 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
Until a fix is available, consider limiting the size of domain-literal components processed or applying resource usage controls to mitigate potential denial of service.
Description
CVE-2025-61725 is a high-severity vulnerability in Golang 1.10 where the ParseAddress function inefficiently constructs domain-literal address components via repeated string concatenation. This inefficiency can lead to excessive CPU consumption when parsing large domain-literal components, potentially causing denial of service due to resource exhaustion.
References
- ubuntu.com/security/CVE-2025-61725 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-61725 (opens in a new tab)
- groups.google.com/g/golang-announce/c/4Emdl2iQ_bI/m/qZN5nc-mBgAJ (opens in a new tab)
- github.com/golang/go/issues/75680 (opens in a new tab)
- github.com/golang/go/commit/6a057327cf9a405e6388593dd4aedc0d0da77092 (opens in a new tab)
- github.com/golang/go/commit/bc6981fd74024098185a23ba3a83a81ed68a06c9 (opens in a new tab)