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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00391.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Lmammino
  • Oidc-authorizer

No data.

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Vendors Products
Lmammino
  • Oidc-authorizer
References
Link Providers
https://vuldb.com/cve/CVE-2026-19363 cve-icon
https://vuldb.com/submit/866093 cve-icon
https://vuldb.com/vuln/387217 cve-icon
https://vuldb.com/vuln/387217/cti cve-icon
History

Mon, 10 Aug 2026 10:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was found in lmammino oidc-authorizer up to 0.4.0. Impacted is the function unwrap of the file src/handler.rs of the component Fixed Message Handler. The manipulation of the argument jwtClaims results in deserialization. The attack can be executed remotely. 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. 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.
Title lmammino oidc-authorizer Fixed Message handler.rs unwrap deserialization lmammino oidc-authorizer Lambda Authorizer handler.rs log file
Weaknesses CWE-20
CWE-502		 CWE-200
CWE-532

Sun, 09 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was found in lmammino oidc-authorizer up to 0.4.0. Impacted is the function unwrap of the file src/handler.rs of the component Fixed Message Handler. The manipulation of the argument jwtClaims results in deserialization. The attack can be executed remotely. 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.
Title lmammino oidc-authorizer Fixed Message handler.rs unwrap deserialization
First Time appeared Lmammino
Lmammino oidc-authorizer
Weaknesses CWE-20
CWE-502
CPEs cpe:2.3:a:lmammino:oidc-authorizer:*:*:*:*:*:*:*:*
Vendors & Products Lmammino
Lmammino oidc-authorizer
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-08-10T09:48:35.704Z

Reserved: 2026-08-08T20:18:38.032Z

Link: CVE-2026-19363

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-10T12:00:06Z