CVE-2026-65912

Aliases:UBUNTU-CVE-2026-65912DEBIAN-CVE-2026-65912GHSA-cjmm-f4jc-qw8rCGA-23x3-29x5-76p4CGA-2xrr-9rq7-6gf6CGA-3449-xc98-43jxCGA-35jr-564p-mghvCGA-3cch-v44h-jqfhCGA-42fj-5ggj-gmwgCGA-64vg-jrrc-7xxqCGA-67j6-wvxr-233gCGA-6fgj-r358-m68hCGA-7c9v-7m44-v5pvCGA-97j7-4749-pqq8CGA-99hj-xv6h-jmq9CGA-c22j-gvrq-fvxxCGA-c7xq-g3p2-frvpCGA-cjxm-xmw9-c55pCGA-f76w-5fhc-3qj4CGA-f8rw-5frr-vm5fCGA-fvm3-pq37-7x5cCGA-gcch-hjmr-rgw6CGA-h46x-x256-26wwCGA-jr6g-fmr8-hx34CGA-mjxg-hvfj-9ffpCGA-mwh6-r467-gxhhCGA-p4hg-cwfc-42cwCGA-pp2r-rghh-9vmpCGA-q9cf-2vmv-xhv5CGA-rh5h-pm8f-2658CGA-rmpw-g397-85ghCGA-rq7h-gqj5-vw2qCGA-rrm4-8957-xmrwCGA-rvrj-29w4-8w2fCGA-vhx2-8wcv-2rj7CGA-w6v2-xc4j-xm6jCGA-x4r6-4532-7x3cCGA-x9rv-3jfm-hr45CGA-xvf6-8458-mf4p
Advisory lineage Upstream: 1 Downstream: 2
Analyzed
Published: 23 Jul 2026, 13:16
Last modified:23 Jul 2026, 15:46

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6.1 MEDIUM
v3.1 (cve.org)
EPSS Score
0.18% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Jul 2026, 13:16
Published
Vulnerability first disclosed
23 Jul 2026, 15:46
Last Modified
Vulnerability information updated

Description

DOMPurify before 3.3.2 contains a URI validation bypass vulnerability when ADD_ATTR is provided as a predicate function via EXTRA_ELEMENT_HANDLING.attributeCheck. Attackers can supply a predicate that accepts specific attribute and tag combinations to bypass URI-safe validation, allowing unsafe protocols like javascript: to survive sanitization and execute as DOM-based XSS when the link is activated.

CVSS Metrics

  • v4.0•MEDIUM•Score: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
  • v4.0•MEDIUM•Score: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • v4.0•MEDIUM•Score: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
  • v3.1•MEDIUM•Score: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Trends

Current EPSS score: 0.18%• Percentile: 7%

Techniques & Countermeasures

  • CWE-79•Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

    The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Affected Systems

  • chainguard•airflow-2

    all

  • chainguard•airflow-core-2

    all

  • chainguard•gitlab-rails-ce-18.1

    all

  • chainguard•gitlab-rails-ce-18.5

    all

  • chainguard•gitlab-rails-ce-18.6

    all

  • chainguard•gitlab-rails-ce-18.7

    all

  • chainguard•gitlab-rails-ce-18.8

    all

  • chainguard•gitlab-rails-ce-18.9

    all

  • chainguard•gitlab-rails-ce-fips-18.1

    all

  • chainguard•gitlab-rails-ce-fips-18.5

    all

  • chainguard•gitlab-rails-ce-fips-18.6

    all

  • chainguard•gitlab-rails-ce-fips-18.7

    all

  • chainguard•gitlab-rails-ce-fips-18.8

    all

  • chainguard•gitlab-rails-ce-fips-18.9

    all

  • chainguard•langfuse-fips-3.152

    all

  • chainguard•langfuse-fips-3.152-worker

    all

  • chainguard•nextcloud-server-31

    all

  • chainguard•wazuh-dashboard-plugins

    < 4.14.4-r1

  • cure53•dompurify

    < 3.3.2

  • debian•node-dompurify

    all | all | < 3.3.2+dfsg-1

  • ubuntu•node-dompurify

    all | all

  • Npm•dompurify

    < 3.3.2

References (9)