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CVE-2026-19363— lmammino oidc-authorizer Lambda Authorizer handler.rs log file

Quick assessment

Affected
lmammino oidc-authorizer
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.

Luciano Mammino oidc-authorizer是Luciano Mammino个人开发者开源的一个身份认证与权限管理组件。 Luciano Mammino oidc-authorizer 0.4.0及之前版本存在安全漏洞，该漏洞源于对src/handler.rs文件中unwrap函数的jwtClaims参数操作不当，可能导致反序列化注入，攻击者可远程利用。

CVSS 5.3 · Medium EPSS 0.67% · P52

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
lmammino oidc-authorizer 0.1 affected
0.2 affected
0.3 affected
0.4.0 affected
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I. Basic Information for CVE-2026-19363

Vulnerability Information
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Vulnerability Title
lmammino oidc-authorizer Lambda Authorizer handler.rs log file
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in lmammino oidc-authorizer up to 0.4.0. Impacted is an unknown function of the file src/handler.rs of the component Lambda Authorizer. The manipulation results in sensitive information in log files. The attack can be executed remotely. `src/handler.rs` logs raw Authorization header values and complete bearer tokens/JWTs on authentication failure paths, potentially exposing credentials through CloudWatch Logs. `src/models.rs` serializes the complete validated JWT claims set with `serde_json::to_string(token_claims).unwrap()` and propagates it through `context["jwtClaims"]` to downstream integrations. This code performs serialization, not deserialization, and does not process attacker-controlled `jwtClaims` input. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Luciano Mammino oidc-authorizer 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Luciano Mammino oidc-authorizer是Luciano Mammino个人开发者开源的一个身份认证与权限管理组件。 Luciano Mammino oidc-authorizer 0.4.0及之前版本存在安全漏洞，该漏洞源于对src/handler.rs文件中unwrap函数的jwtClaims参数操作不当，可能导致反序列化注入，攻击者可远程利用。
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
lmammino oidc-authorizer 0.1 cpe:2.3:a:lmammino:oidc-authorizer:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19363

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-19363

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Vendor Advisories for CVE-2026-19363 (1)

Other References for CVE-2026-19363 (2)

IV. Related Vulnerabilities

Same product: oidc-authorizer
Same vendor: lmammino
Same weakness: CWE-532