# Jpadilla vulnerabilities

Source: https://junglewise.ai/threats/vendors/jpadilla  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/jpadilla.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 13 vulnerabilities in Jpadilla: 0 in the last 7 days and 7 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-103001, was published on 30 September 2026. Nothing in the last four weeks, down from 7 vulnerabilities in the four before. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 7
- All time: 13 (0 critical, 0 exploited in the wild)

## About Jpadilla

An open-source contributor and maintainer of various Python-based libraries and tools.

## Latest Jpadilla vulnerabilities

- [CVE-2026-103001: PyJWT decode() options-dict mutation enabling claim-verification bypass](https://junglewise.ai/threats/cve-2026-103001-pyjwt-decode-reintroduces-options-dict-mutation-enabling-silent) (medium, CVSS 6.5, published 30 Sep 2026)
- [CVE-2026-102272: PyJWT HMAC key confusion via BOM-prefixed public JWK](https://junglewise.ai/threats/cve-2026-102272-pyjwt-is-a-python-implementation-of-json-web-token-standards) (high, CVSS 7.4, published 28 Sep 2026)
- [CVE-2026-102271: PyJWT HMAC token forgery via DER public key confusion](https://junglewise.ai/threats/cve-2026-102271-pyjwt-is-a-python-implementation-of-json-web-token-standards) (high, CVSS 7.4, published 28 Sep 2026)
- [CVE-2026-102270: PyJWT denial of service in PEM format validation](https://junglewise.ai/threats/cve-2026-102270-pyjwt-is-a-python-implementation-of-json-web-token-standards) (medium, CVSS 4.4, published 28 Sep 2026)
- [CVE-2026-102269: PyJWT signature validation bypass via non-canonical Base64URL](https://junglewise.ai/threats/cve-2026-102269-pyjwt-is-a-python-implementation-of-json-web-token-standards) (medium, CVSS 4.8, published 28 Sep 2026)
- [CVE-2026-102266: PyJWT HMAC key validation bypass in JWK parsing](https://junglewise.ai/threats/cve-2026-102266-pyjwt-is-a-python-implementation-of-json-web-token-standards) (high, CVSS 7.4, published 28 Sep 2026)
- [CVE-2026-101917: PyJWT JWKS client denial-of-service via cache bypass](https://junglewise.ai/threats/cve-2026-101917-pyjwt-is-a-python-implementation-of-json-web-token-standards) (medium, CVSS 5.3, published 28 Sep 2026)
- [CVE-2026-48526: PyJWT algorithm confusion via JSON Web Keys](https://junglewise.ai/threats/cve-2026-48526-pyjwt-algorithm-confusion-via-json-web-keys) (high, CVSS 7.4, published 28 May 2026)
- [CVE-2026-48525: PyJWT Denial of Service in detached JWS verification](https://junglewise.ai/threats/cve-2026-48525-pyjwt-denial-of-service-in-detached-jws-verification) (medium, CVSS 5.3, published 28 May 2026)
- [CVE-2026-48524: PyJWT denial of service via unbounded JWKS endpoint requests](https://junglewise.ai/threats/cve-2026-48524-pyjwt-denial-of-service-via-unbounded-jwks-endpoint-requests) (low, CVSS 3.7, published 28 May 2026)
- [CVE-2026-48523: PyJWT algorithm allow-list bypass in PyJWK verification](https://junglewise.ai/threats/cve-2026-48523-pyjwt-algorithm-allow-list-bypass-in-pyjwk-verification) (medium, CVSS 5.4, published 28 May 2026)
- [CVE-2026-48522: PyJWT SSRF and token forgery in PyJWKClient via URI schemes](https://junglewise.ai/threats/cve-2026-48522-pyjwt-ssrf-and-token-forgery-in-pyjwkclient-via-uri-schemes) (medium, CVSS 4.2, published 28 May 2026)
- [CVE-2026-32597: PyJWT insufficient verification of critical header extensions](https://junglewise.ai/threats/cve-2026-32597-pyjwt-insufficient-verification-of-critical-header-extensions) (high, CVSS 7.5, published 13 Mar 2026)

## Most severe Jpadilla vulnerabilities

- [CVE-2026-32597: PyJWT insufficient verification of critical header extensions](https://junglewise.ai/threats/cve-2026-32597-pyjwt-insufficient-verification-of-critical-header-extensions) (high, CVSS 7.5, published 13 Mar 2026)
- [CVE-2026-48526: PyJWT algorithm confusion via JSON Web Keys](https://junglewise.ai/threats/cve-2026-48526-pyjwt-algorithm-confusion-via-json-web-keys) (high, CVSS 7.4, published 28 May 2026)
- [CVE-2026-102272: PyJWT HMAC key confusion via BOM-prefixed public JWK](https://junglewise.ai/threats/cve-2026-102272-pyjwt-is-a-python-implementation-of-json-web-token-standards) (high, CVSS 7.4, published 28 Sep 2026)
- [CVE-2026-102271: PyJWT HMAC token forgery via DER public key confusion](https://junglewise.ai/threats/cve-2026-102271-pyjwt-is-a-python-implementation-of-json-web-token-standards) (high, CVSS 7.4, published 28 Sep 2026)
- [CVE-2026-102266: PyJWT HMAC key validation bypass in JWK parsing](https://junglewise.ai/threats/cve-2026-102266-pyjwt-is-a-python-implementation-of-json-web-token-standards) (high, CVSS 7.4, published 28 Sep 2026)
- [CVE-2026-103001: PyJWT decode() options-dict mutation enabling claim-verification bypass](https://junglewise.ai/threats/cve-2026-103001-pyjwt-decode-reintroduces-options-dict-mutation-enabling-silent) (medium, CVSS 6.5, published 30 Sep 2026)
- [CVE-2026-48523: PyJWT algorithm allow-list bypass in PyJWK verification](https://junglewise.ai/threats/cve-2026-48523-pyjwt-algorithm-allow-list-bypass-in-pyjwk-verification) (medium, CVSS 5.4, published 28 May 2026)
- [CVE-2026-48525: PyJWT Denial of Service in detached JWS verification](https://junglewise.ai/threats/cve-2026-48525-pyjwt-denial-of-service-in-detached-jws-verification) (medium, CVSS 5.3, published 28 May 2026)
- [CVE-2026-101917: PyJWT JWKS client denial-of-service via cache bypass](https://junglewise.ai/threats/cve-2026-101917-pyjwt-is-a-python-implementation-of-json-web-token-standards) (medium, CVSS 5.3, published 28 Sep 2026)
- [CVE-2026-102269: PyJWT signature validation bypass via non-canonical Base64URL](https://junglewise.ai/threats/cve-2026-102269-pyjwt-is-a-python-implementation-of-json-web-token-standards) (medium, CVSS 4.8, published 28 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 7 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 7 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Jpadilla technologies

- [Jpadilla PyJWT](https://junglewise.ai/threats/technologies/pyjwt): 13 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Jpadilla vulnerabilities", https://junglewise.ai/threats/vendors/jpadilla, 9 November 2026.