CVE-2026-19363
lmammino oidc-authorizer Lambda Authorizer handler.rs log file
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.
INFO
Published Date :
Aug. 9, 2026, 6:16 p.m.
Last Modified :
Aug. 12, 2026, 8:59 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update lmammino oidc-authorizer to version 0.4.1 or later.
- Review and sanitize all inputs to the unwrap function.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-19363.
| URL | Resource |
|---|---|
| https://vuldb.com/cve/CVE-2026-19363 | |
| https://vuldb.com/submit/866093 | |
| https://vuldb.com/vuln/387217 | |
| https://vuldb.com/vuln/387217/cti |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19363 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-19363
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-19363 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19363 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 11, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-19363', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-11T01:48:34.120395Z'} -
CVE Modified by [email protected]
Aug. 10, 2026
Action Type Old Value New Value Changed Affected [{'cpes': ['cpe:2.3:a:lmammino:oidc-authorizer:*:*:*:*:*:*:*:*'], 'vendor': 'lmammino', 'modules': ['Fixed Message Handler'], 'product': 'oidc-authorizer', 'versions': [{'status': 'affected', 'version': '0.1'}, {'status': 'affected', 'version': '0.2'}, {'status': 'affected', 'version': '0.3'}, {'status': 'affected', 'version': '0.4.0'}]}] [{'cpes': ['cpe:2.3:a:lmammino:oidc-authorizer:*:*:*:*:*:*:*:*'], 'vendor': 'lmammino', 'modules': ['Lambda Authorizer'], 'product': 'oidc-authorizer', 'versions': [{'status': 'affected', 'version': '0.1'}, {'status': 'affected', 'version': '0.2'}, {'status': 'affected', 'version': '0.3'}, {'status': 'affected', 'version': '0.4.0'}]}] Changed 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. Added CWE CWE-200 Added CWE CWE-532 Removed CWE CWE-20 Removed CWE CWE-502 -
New CVE Received by [email protected]
Aug. 09, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:lmammino:oidc-authorizer:*:*:*:*:*:*:*:*'], 'vendor': 'lmammino', 'modules': ['Fixed Message Handler'], 'product': 'oidc-authorizer', 'versions': [{'status': 'affected', 'version': '0.1'}, {'status': 'affected', 'version': '0.2'}, {'status': 'affected', 'version': '0.3'}, {'status': 'affected', 'version': '0.4.0'}]}] 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CWE CWE-20 Added CWE CWE-502 Added Reference https://vuldb.com/cve/CVE-2026-19363 Added Reference https://vuldb.com/submit/866093 Added Reference https://vuldb.com/vuln/387217 Added Reference https://vuldb.com/vuln/387217/cti