CVE-2026-39373 · cross-distro fix matrix

CVE-2026-39373: JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the

Affects 1 Linux release across 1 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-39373 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

python-jwcrypto→ fixed in1.5.6-1.1~deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-jwcrypto
```

Are YOU affected by CVE-2026-39373?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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