---
id: RUSTSEC-2026-0049
aliases:
  - GHSA-pwjx-qhcg-rvj4
title: >-
  CRLs not considered authoritative by Distribution Point due to faulty matching
  logic
summary: >-
  CRLs not considered authoritative by Distribution Point due to faulty matching
  logic
severity: none
vendor: rustls-webpki
product: rustls-webpki
ecosystem: rust
affected:
  - 'rustls-webpki >= 0.102.0-alpha.0, < 0.103.10'
patched:
  - rustls-webpki 0.103.10
published: '2026-03-20'
updated: '2026-07-17'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/RUSTSEC-2026-0049'
references:
  - url: 'https://crates.io/crates/rustls-webpki'
  - url: 'https://rustsec.org/advisories/RUSTSEC-2026-0049.html'
tags:
  - osv
  - rust
ingestedAt: '2026-07-17T19:00:51.897Z'
---

## Overview

If a certificate had more than one `distributionPoint`, then only the first `distributionPoint` would be considered against each CRL's `IssuingDistributionPoint` `distributionPoint`, and then the certificate's subsequent `distributionPoint`s would be ignored.

The impact was that correctly provided CRLs would not be consulted to check revocation. With `UnknownStatusPolicy::Deny` (the default) this would lead to incorrect but safe `Error::UnknownRevocationStatus`. With `UnknownStatusPolicy::Allow` this would lead to inappropriate acceptance of revoked certificates.

This vulnerability is thought to be of limited impact. This is because both the certificate and CRL are signed -- an attacker would need to compromise a trusted issuing authority to trigger this bug.  An attacker with such capabilities could likely bypass revocation checking through other more impactful means (such as publishing a valid, empty CRL.)

More likely, this bug would be latent in normal use, and an attacker could leverage faulty revocation checking to continue using a revoked credential.

This vulnerability is identified as [GHSA-pwjx-qhcg-rvj4](https://github.com/rustls/webpki/security/advisories/GHSA-pwjx-qhcg-rvj4). Thank you to [@1seal](https://github.com/1seal) for the report.

## Affected packages

- `rustls-webpki >= 0.102.0-alpha.0, < 0.103.10`

## Remediation

Upgrade to a patched release:

- `rustls-webpki 0.103.10`