8.5

CVE-2026-28513: pocket-id pocket_id Incorrect Authorization

CVSS: 8.5v3.1HighAnalyzed
AliasesGHSA-qh6q-598w-w6m2GO-2026-4656
Published 09-03-2026Last modified 10-03-2026

Vulnerability summary

CVE-2026-28513 is a high (CVSS 8.5) Incorrect Authorization vulnerability in pocket-id pocket_id. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
44/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.31%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 2

Timeline

  1. 09-03-2026
    PublishedVulnerability first disclosed.
  2. 10-03-2026
    Last modifiedVulnerability information updated.

Description

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. Prior to 2.4.0, the OIDC token endpoint rejects an authorization code only when both the client ID is wrong and the code is expired. This allows cross-client code exchange and expired code reuse. This vulnerability is fixed in 2.4.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

+0.03 pp

From 0.28% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.31%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Pocket Id

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Pocket-id2 products
Github.com/pocket-id/pocket-id1 product
  • backend< 0.0.0-20260307173642-b59e35cb59ae

2 vendors · 3 products

References

3 links