CVE-2026-39820
Quadratic string concatentation in consumeComment in net/mail
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.
| Vendor | go standard library |
| Product | net/mail |
| Published | May 7, 2026 |
| Last Updated | May 8, 2026 |
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Affected Versions
Go standard library / net/mail
0 < 1.25.10 1.26.0-0 < 1.26.3
References
Credits
thatnealpatel