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🐍 PyPI
Not in CISA KEV
HIGH severity

CVE-2023-48056 — pypinksign

HIGHFix: bandoche/PyPinkSign@e1809dd

CVE-2023-48056 is a high-severity (CVSS 7.5) Insufficient Random Values vulnerability in pypinksign. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

PyPinkSign uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption

Also known asGHSA-fxff-wxxv-c2jcPYSEC-2023-245
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-48056.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs35th percentile — riskier than 35% of all scored CVEsHighest risk
0.00%0.32%0.65%0.97%0.2%0.4%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍pypinksign

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐍PyPIpypinksignall versionsNo fix

Affected Products

1 product · 1 configurations
Application
pypinksignbandoche
1 version
0.5.1

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pypinksign, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of pypinksign for CVE-2023-48056. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.
O3 Security · Impact-Aware SCA

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CVE-2023-48056: pypinksign (High 7.5)