Vulnerability Report: GO-2026-4986
standard library- CVE-2026-39820
- Affects: net/mail
- Published: May 07, 2026
Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.
Affected Packages
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PathGo VersionsSymbols
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before go1.25.10, from go1.26.0-0 before go1.26.3
Aliases
References
- https://go.dev/issue/78566
- https://go.dev/cl/759940
- https://groups.google.com/g/golang-announce/c/qcCIEXso47M
- https://vuln.go.dev/ID/GO-2026-4986.json
Credits
- thatnealpatel
Feedback
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