lmammino oidc-authorizer up to 0.4.0 Fixed Message src/handler.rs unwrap jwtClaims deserialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k1.69

Summaryinfo

A vulnerability was found in lmammino oidc-authorizer up to 0.4.0. It has been classified as problematic. The affected element is the function unwrap of the file src/handler.rs of the component Fixed Message Handler. This manipulation of the argument jwtClaims causes deserialization. This vulnerability is tracked as CVE-2026-19363. The attack is possible to be carried out remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as problematic was found in lmammino oidc-authorizer up to 0.4.0. Affected by this vulnerability is the function unwrap of the file src/handler.rs of the component Fixed Message Handler. The manipulation of the argument jwtClaims with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality.

This vulnerability is known as CVE-2026-19363. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/08/2026 Advisory disclosed
08/08/2026 +0 days VulDB entry created
08/08/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2026-19363 (🔒)
GCVE (CVE): GCVE-0-2026-19363
GCVE (VulDB): GCVE-100-387217
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/08/2026 22:23
Changes: 08/08/2026 22:23 (55)
Complete: 🔍
Submitter: changli
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #866093: lmammino oidc-authorizer 0.4.0 Exposure of Sensitive Information Through Metadata (by changli)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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