CVE-2026-102270ModerateRevised 7 Oct
PyJWT: ReDoS vulnerability when calling the `is_pem_format` function.
Assessment
- Severity
- Moderate
- CVSS base score
- 4.4CVSS:3.1/
AV:N/ AC:H/ PR:H/ UI:N/ S:U/ C:N/ I:N/ A:H - Impact
- Not stated
- EPSS, next 30 days
- Not scored yet
- Public exploit code
- No Nuclei template lists it
- Exploitability
- Not assessed
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- Mariner
- Weakness
- CWE-1333: Inefficient Regular Expression Complexity
- Issued by
- GitHub_M
- Published
- 30 Sep 2026 · September 2026
- Last revised
- 7 Oct 2026Information published.
Updates that fix it
0 KBsNo KB listed
MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.
Affected products
1 affected product
- azl3 libical 3.0.10-1 on Azure Linux 3.0
What changed
First observed 14 Oct 2026- 14 Oct 2026 Source coverage: msrc-cvrfIncomplete → Current
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