CVE-2026-69247: cryptography is a package designed to expose cryptographic primitives and recipes to Python developers

Routine

HIGH 8.2REMOTE

CVE-2026-69247 is a high-severity flaw (CVSS 8.2) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 atta

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-208, CWE-209
Published	2026-08-03
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-08-03 22:16 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

Exact fixes by distribution

Python (pip) · cryptography · FIXED · 50.0.0 · vulnerable: >= 44.0.0, < 50.0.0 · source

pip install --upgrade "cryptography>=50.0.0" pip show cryptography

Fedora ELN · ntpd-rs · FIXED · 1.7.2-3.eln159 · FEDORA-2026-57e4a99310 · source

sudo dnf upgrade --advisory=FEDORA-2026-57e4a99310

Fedora 46 · moby-engine · FIXED · 29.9.2-2.fc46 · FEDORA-2026-4856be87b3 · source

sudo dnf upgrade --advisory=FEDORA-2026-4856be87b3

Ubuntu 20.04 · python-cryptography · NOT AFFECTED

Ubuntu 22.04 · python-cryptography · NOT AFFECTED

Ubuntu 24.04 · python-cryptography · NOT AFFECTED

Debian 12 · python-cryptography · NOT AFFECTED

Debian 13 · python-cryptography · NOT AFFECTED

RHEL 10 · python3.14-cryptography · DEFERRED

RHEL 10 · python-cryptography · DEFERRED

RHEL 10 · rhel10/keylime-registrar · NOT AFFECTED

RHEL 10 · rhel10/keylime-verifier · NOT AFFECTED

RHEL 9 · python3.14-cryptography · DEFERRED

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-69247?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-69247 being exploited?

CVE-2026-69247 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-69247 affect?

CVE-2026-69247 affects affected software. Severity is high (CVSS 8.2). 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 RecipientIn

How urgent is CVE-2026-69247?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities

References

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