OESA-2026-1925

See a problem?
Please try reporting it to the source first.
Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-1925
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-1925.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2026-1925
Upstream
Published
2026-04-17T13:00:28Z
Modified
2026-04-17T13:19:23.748325Z
Summary
python-jwcrypto security update
Details

Implements JWK, JWS, JWE specifications with python-cryptography

Security Fix(es):

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 decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.(CVE-2026-39373)

Database specific 
{
    "severity": "Medium"
}
References

Affected packages

openEuler:24.03-LTS / python-jwcrypto

Package

Name
python-jwcrypto
Purl
pkg:rpm/openEuler/python-jwcrypto&distro=openEuler-24.03-LTS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.0-4.oe2403

Ecosystem specific 

{
    "src": [
        "python-jwcrypto-1.5.0-4.oe2403.src.rpm"
    ],
    "noarch": [
        "python-jwcrypto-help-1.5.0-4.oe2403.noarch.rpm",
        "python3-jwcrypto-1.5.0-4.oe2403.noarch.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-1925.json"