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CVE-2026-13320

HIGH 7.3 ALL-YEARS

Published 2026-07-08 · Last modified 2026-07-09 · GitLab · NVD: Analyzed

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts in another user's browser session due to improper sanitization of user-supplied input.

ELEVATED IMPACT

Severe if exploited (CVSS 7.3), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 33rd percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

7.3CVSS 3.1 · HIGH · CNA

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityNone

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires an admin / high-privilege account
  • ⚠User interaction: A user must take an action (click / open a file)
  • ⚠Complexity: Needs a race window or specific setup

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

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

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

References and research data (JSON)

Vendor product assessments

  • openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:oci/pipelines-console-plugin-pf5-rhel9?repository_url=registry.redhat.io/openshift-pipelines/pipelines-console-plugin-pf5-rhel9

    Red Hat · CVE-2026-13320 · Updated 2026-07-09T20:45:24+00:00
  • openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:oci/pipelines-console-plugin-rhel9?repository_url=registry.redhat.io/openshift-pipelines/pipelines-console-plugin-rhel9

    Red Hat · CVE-2026-13320 · Updated 2026-07-09T20:45:24+00:00
  • openshift4/ose-console as a component of Red Hat OpenShift Container Platform 4 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:oci/ose-console?repository_url=registry.redhat.io/openshift4/ose-console

    Red Hat · CVE-2026-13320 · Updated 2026-07-09T20:45:24+00:00
  • openshift4/ose-console-rhel9 as a component of Red Hat OpenShift Container Platform 4 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:oci/ose-console-rhel9?repository_url=registry.redhat.io/openshift4/ose-console-rhel9

    Red Hat · CVE-2026-13320 · Updated 2026-07-09T20:45:24+00:00

Known Affected Software Configurations

VendorProductVersion range
GitlabGitlab≥ 15.7.0 and < 18.11.7
GitlabGitlab≥ 15.7.0 and < 18.11.7
GitlabGitlab≥ 19.0.0 and < 19.0.4
GitlabGitlab≥ 19.0.0 and < 19.0.4
GitlabGitlab≥ 19.1.0 and < 19.1.2
GitlabGitlab≥ 19.1.0 and < 19.1.2

All CVSS metrics

  • HIGH 7.3 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
  • HIGH 7.3 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
  • MEDIUM 5.4 v3.1 · NVD Primary
    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Exploit-tagged references (not proof of a PoC)

  • https://hackerone.com/reports/3816917 technical-descriptionexploitpermissions-requiredPermissions Requiredvendor-referenceCVE record · GitLab · Updated 2026-07-08T20:46:13.854Z
    NVD · CVE-2026-13320 · Updated 2026-07-09T20:35:14.233
    Red Hat · CVE-2026-13320 · Updated 2026-07-09T20:45:24+00:00

Advisories

Technical & other

Sources: NVD · CVE.org · All sources and attribution · EPSS