CVE-2026-42504
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Go standard library | mime | 0 < 1.25.11 | affected |
| Go standard library | mime | 1.26.0-0 < 1.26.4 | affected |
Weaknesses
- CWE-407: Inefficient Algorithmic Complexity
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://go.dev/issue/79217
- https://go.dev/cl/774481
- https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw
- https://pkg.go.dev/vuln/GO-2026-5038
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