Vendor
Authlib vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 21 vulnerabilities in Authlib: 0 in the last 7 days and 13 in the last 90 days, 3 of them critical and 0 exploited in the wild. The most recent, CVE-2026-119284, was published on 29 October 2026. 9 vulnerabilities in the last four weeks, up 200% on the four before (3). 0 critical against 2. 2 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 13
- Critical, all time
- 3
- Exploited in the wild
- 0
About Authlib
Authlib is a Python library that implements various authentication and authorization protocols, including OAuth and OpenID Connect.
Authlib technologies
Latest Authlib vulnerabilities
- CVE-2026-119284: joserfc memory exhaustion in compact JWS deserializationmediumCVSS 4EPSS 0.2%
- CVE-2026-119283: joserfc JWE denial of service via unlimited recipientshighCVSS 7.5EPSS 0.2%
- CVE-2026-116672: Authlib client configuration endpoint authorization bypasshighCVSS 8.8EPSS 0.3%
- CVE-2026-114620: Authlib RFC 9101 server-side request forgery in request_uri parametermediumCVSS 5.4EPSS 0.4%
- CVE-2026-114619: Authlib OpenID Connect scope validation bypassmediumCVSS 4.6EPSS 0.2%
- CVE-2026-114618: Authlib JWT Bearer Grant audience validation bypassmediumCVSS 6.8EPSS 0.4%
- CVE-2026-114617: Authlib nonce validation bypass in OpenID token parsingmediumCVSS 4.2EPSS 0.3%
- CVE-2026-114616: Authlib HMAC signature forgery with zero-length keyshighCVSS 7.4EPSS 0.3%
- CVE-2026-114615: Authlib HMAC secret confusion in JWT verificationhighCVSS 7.4EPSS 0.2%
- CVE-2026-104056: Authlib OAuth/OIDC discovery metadata cache trust boundary bypassinfoEPSS 0.1%
- Authlib signature verification bypass in JWS JSON deserializationcriticalCVSS 9.8
- CVE-2026-96760: Authlib JSON Web Signature verification bypasscriticalCVSS 9.1EPSS 0.4%
- CVE-2026-75509: authlib joserfc issuer validation bypass in JWT claimsmediumCVSS 6.5EPSS 0.1%
- CVE-2026-62995: authlib joserfc token malleability via trailing paddinginfoCVSS 2.3
- CVE-2026-49852: authlib joserfc authentication bypass via empty HMAC keyhighCVSS 4EPSS 0.2%
- CVE-2026-48990: authlib joserfc resource exhaustion via oversized RFC7797 payloadsmediumCVSS 5.3EPSS 0.3%
- CVE-2026-44681: Authlib open redirect in OIDC Implicit and Hybrid grantsmediumCVSS 6.1EPSS 0.3%
- CVE-2026-41425: Authlib CSRF in OAuth integrations when using cache storagemediumCVSS 5.4EPSS 0.1%
- CVE-2026-27962: Authlib JWK Header Injection signature verification bypasscriticalCVSS 9.1EPSS 0.6%
- CVE-2025-68158: PYSEC-2026-1201 - Authlib has 1-click Account Takeover vulnerabilitymediumCVSS 5.7EPSS 0.3%
- CVE-2025-62706: PYSEC-2026-1202 - Authlib : JWE zip=DEF decompression bomb enables DoSmediumCVSS 6.5EPSS 0.5%
Most severe Authlib vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- Authlib signature verification bypass in JWS JSON deserializationcriticalCVSS 9.8
- CVE-2026-27962: Authlib JWK Header Injection signature verification bypasscriticalCVSS 9.1EPSS 0.6%
- CVE-2026-96760: Authlib JSON Web Signature verification bypasscriticalCVSS 9.1EPSS 0.4%
- CVE-2026-116672: Authlib client configuration endpoint authorization bypasshighCVSS 8.8EPSS 0.3%
- CVE-2026-119283: joserfc JWE denial of service via unlimited recipientshighCVSS 7.5EPSS 0.2%
- CVE-2026-114616: Authlib HMAC signature forgery with zero-length keyshighCVSS 7.4EPSS 0.3%
- CVE-2026-114615: Authlib HMAC secret confusion in JWT verificationhighCVSS 7.4EPSS 0.2%
- CVE-2026-49852: authlib joserfc authentication bypass via empty HMAC keyhighCVSS 4EPSS 0.2%
- CVE-2026-114618: Authlib JWT Bearer Grant audience validation bypassmediumCVSS 6.8EPSS 0.4%
- CVE-2025-62706: PYSEC-2026-1202 - Authlib : JWE zip=DEF decompression bomb enables DoSmediumCVSS 6.5EPSS 0.5%
Vulnerabilities per week
9 vulnerabilities in the last four weeks, up 200% on the four before (3). 0 critical against 2. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 1 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 3 | 2 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 6 | 0 | |
| 26 Oct 2026 | 3 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Authlib vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/authlib)<a href="https://junglewise.ai/threats/vendors/authlib"><img src="https://junglewise.ai/threats/vendors/authlib/badge.svg" alt="Authlib vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/authlib.json, and this page as text at https://junglewise.ai/threats/vendors/authlib.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Authlib vulnerabilities", https://junglewise.ai/threats/vendors/authlib, 12 November 2026.