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2 vulnerabilities found for mirage-crypto by OCaml
CVE-2026-87732 (GCVE-0-2026-87732)
Vulnerability from nvd – Published: 2026-09-09 04:03 – Updated: 2026-09-09 13:11
VLAI
EPSS
VEX
Summary
An issue was discovered in the mirage-crypto package before 2.2.0 for OCaml. The AES.GCM.authenticate_decrypt_into and Chacha20.authenticate_decrypt_into functions write the decrypted plaintext into a caller-provided buffer and only then compares the tag. On a forged tag, the functions returns false, but the destination buffer already holds the full plaintext.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 13:11 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OCaml | mirage-crypto |
Affected:
0 , < 2.2.0
(semver)
|
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CVE-2026-87732 (GCVE-0-2026-87732)
Vulnerability from cvelistv5 – Published: 2026-09-09 04:03 – Updated: 2026-09-09 13:11
VLAI
EPSS
VEX
Summary
An issue was discovered in the mirage-crypto package before 2.2.0 for OCaml. The AES.GCM.authenticate_decrypt_into and Chacha20.authenticate_decrypt_into functions write the decrypted plaintext into a caller-provided buffer and only then compares the tag. On a forged tag, the functions returns false, but the destination buffer already holds the full plaintext.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 13:11 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OCaml | mirage-crypto |
Affected:
0 , < 2.2.0
(semver)
|
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