Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-13089— OIDC::Lite versions through 0.12.1 for Perl allow ID Token signature verification bypass via a token-controlled algorithm allowlist in verify

Quick assessment

Affected
RITOU OIDC::Lite
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ryo Ito OIDC::Lite是Ryo Ito个人开发者的一款轻量级的OIDC身份认证协议实现软件。 Ryo Ito OIDC::Lite 0.12.1及之前版本存在加密问题漏洞，该漏洞源于ID Token签名验证绕过问题，允许攻击者通过令牌控制的算法白名单伪造令牌。

AI Predicted 9.1 Difficulty: Easy EPSS 0.37% · P29

Affected Version Matrix 1

VendorProduct Version RangeStatus
RITOU OIDC::Lite ≤ 0.12.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-13089

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
OIDC::Lite versions through 0.12.1 for Perl allow ID Token signature verification bypass via a token-controlled algorithm allowlist in verify
Source: CVE Program / CVE List V5
Vulnerability Description
OIDC::Lite versions through 0.12.1 for Perl allow ID Token signature verification bypass via a token-controlled algorithm allowlist in verify. When the caller does not pin an algorithm, OIDC::Lite::Model::IDToken::verify sets $self->alg($self->header->{alg}) from the token's own header and then calls decode_jwt(token, key, 1, [$self->alg]), handing JSON::WebToken an accepted-algorithm allowlist taken from the untrusted token. A token with alg=none yields ['none'], so decode_jwt returns the claims with no signature check, and a token with alg=HS256 is verified with the RP's RSA public key as the HMAC secret (RS to HS confusion). The ID Token is the OpenID Connect authentication assertion delivered to the Relying Party. Any caller that verifies an ID Token through the unpinned load(token)->verify path, or load(token, key) with only the key pinned, accepts a forged token carrying attacker-chosen claims such as sub and is authenticated as any user. Passing an explicit algorithm so $self->alg is already set bypasses the header-derived allowlist and is not affected. Note that the latest version uploaded to CPAN is 0.10. Later versions are available in the git repository.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Ryo Ito OIDC::Lite 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ryo Ito OIDC::Lite是Ryo Ito个人开发者的一款轻量级的OIDC身份认证协议实现软件。 Ryo Ito OIDC::Lite 0.12.1及之前版本存在加密问题漏洞，该漏洞源于ID Token签名验证绕过问题，允许攻击者通过令牌控制的算法白名单伪造令牌。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
RITOU OIDC::Lite 0 ~ 0.12.1 -

II. Public POCs for CVE-2026-13089

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-13089

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-13089 (1)

Other References for CVE-2026-13089 (1)

IV. Related Vulnerabilities

Same weakness: CWE-347

V. Comments for CVE-2026-13089

No comments yet

Leave a comment