pypi package report

Is jwcrypto safe?

5 known vulnerabilities, worst severity MODERATE.

cvss
5.3

how bad it is if exploited, out of 10

epss
0.30%

chance of exploitation in the next 30 days

xyz score
not scored

CyberXYZ composite, out of 10

fig. 01 — GHSA-fjrm-76x2-c4q4, the advisory selected below

// advisories

GHSA-fjrm-76x2-c4q4

MODERATECVE-2026-39373

The fix for GHSA-j857-7rvv-vj97 in v1.5.6 is weak in that it does not allow to fully control the amount of plaintext the receiver is willing to deal with and provides just a weak upper bound. The patch limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can craft a JWE token under the 250KB input limit that decompresses to very large dat

Affected
<= 1.5.6
Fixed in
1.5.7
Weakness
CWE-409
Published
2026-04-08
Source
github

GHSANVDMITREreferencereferencereferencereference

// dependencies

2 direct, 1 carrying known advisories, worst HIGH

Sign in for dependency paths and remediation

// ai model usage

No published models are known to use this package.

Checked 2026-09-22 at 00:45 UTC. The most recent advisory here was published 2026-04-08. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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Is jwcrypto safe? pypi package security report | CyberXYZ