7.1

CVE-2026-28512: pocket-id pocket_id Open Redirect

CVSS: 7.1v3.1HighAnalyzed
AliasesGHSA-9h33-g3ww-mqffGO-2026-4653
Published 09-03-2026Last modified 10-03-2026

Vulnerability summary

CVE-2026-28512 is a high (CVSS 7.1) Open Redirect vulnerability in pocket-id pocket_id. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

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. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

+0.07 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Pocket-id2 products
Github.com/pocket-id/pocket-id1 product
  • backend< 0.0.0-20260228130835-3a339e33191c

2 vendors · 3 products

References

4 links