[pkg-vuln] CVE-2026-69247 in cryptography@49.0.0 #603

New Issue

kert · 2026-08-13T06:01:25Z

kert commented

2026-08-13 06:01:25 +00:00

Severity: HIGH
Package: cryptography @ 49.0.0
Fixed in: 50.0.0

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7_decrypt_der, pkcs7_decrypt_pem, and pkcs7_decrypt_smime reported the outcome of decrypting a RecipientInfo's encryptedKey in several distinguishable ways, one of which disclosed the exact length recovered from the RSA operation. The same distinction was also observable by timing. An application that decrypts attacker-supplied EnvelopedData and reflects the outco

Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-69247

**Severity:** HIGH **Package:** `cryptography` @ `49.0.0` **Fixed in:** `50.0.0` cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7_decrypt_der, pkcs7_decrypt_pem, and pkcs7_decrypt_smime reported the outcome of decrypting a RecipientInfo's encryptedKey in several distinguishable ways, one of which disclosed the exact length recovered from the RSA operation. The same distinction was also observable by timing. An application that decrypts attacker-supplied EnvelopedData and reflects the outco **Reference:** https://nvd.nist.gov/vuln/detail/CVE-2026-69247

kert added this to the P21: Package Supply Chain — inventory, mirrors, drift, vuln scanning milestone 2026-08-13 06:01:25 +00:00

kert added the quality ci labels 2026-08-13 06:01:25 +00:00

kert commented

2026-08-13 23:42:54 +00:00

Duplicate of #587 — filed by the supply-chain scanner against the pre-fix dependency set. The bump landed in 611a1d6 (aiohttp 3.14.3, pyasn1 0.6.4, cryptography 50.0.0; verified installed) with per-CVE exploitability rationale on the original issue. The next scheduled scan runs against the fixed lockfile.

Duplicate of #587 — filed by the supply-chain scanner against the pre-fix dependency set. The bump landed in 611a1d6 (aiohttp 3.14.3, pyasn1 0.6.4, cryptography 50.0.0; verified installed) with per-CVE exploitability rationale on the original issue. The next scheduled scan runs against the fixed lockfile.

kert closed this issue

2026-08-13 23:42:54 +00:00

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Reference: homelab/stack#603