8.7

CVE-2026-26022: Gogs: Stored XSS via data URI in issue comments

Analyzed
AliasesGHSA-xrcr-gmf5-2r8jGO-2026-4620
Published 05-03-2026Last modified 10-03-2026

Vulnerability summary

CVE-2026-26022 is a high (CVSS 8.7) vulnerability in gogs. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 29.1% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
8.7/10
010
High · v3.1 (CVE.org)
EPSS score
0.35%
0%100%
Low · -0.08 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21483-1SUSE-SU-2026:1042-1

Timeline

  1. 05-03-2026
    PublishedVulnerability first disclosed.
  2. 10-03-2026
    Last modifiedVulnerability information updated.

Description

Gogs is an open source self-hosted Git service. Prior to version 0.14.2, a stored cross-site scripting (XSS) vulnerability exists in the comment and issue description functionality. The application's HTML sanitizer explicitly allows data: URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links. This issue has been patched in version 0.14.2.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

Decrease -0.08 pp

From 0.44% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Gogs

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.

Gogs1 product
Gogs.io1 product
  • gogs< 0.14.2 | All versions (No fix recorded)

2 vendors · 2 products

References

6 links