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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-111590

SSRF in Harbor webhook delivery allows ProjectAdmin to reach internal servicesCVE-2026-111590

Answer in brief

CVE-2026-111590 records a Unknown severity vulnerability in SSRF in Harbor webhook delivery allows ProjectAdmin to reach internal services. The current sources do not mark it as known exploited. The current feed maps Harbor/Harbor (generic), Harbor/Harbor (generic), Harbor/Harbor (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 26, 2026Updated Oct 26, 2026Source checked Oct 26, 2026First seen by HOL Oct 26, 2026Material review Oct 26, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Harbor/Harbor (generic), Harbor/Harbor (generic), Harbor/Harbor (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Harbor/Harborgeneric>=2.15.0 <2.15.32.15.3
Harbor/Harborgeneric>=2.14.0 <2.14.52.14.5
Harbor/Harborgeneric>=1.7.0 <2.13.62.13.6

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Harbor/Harbor, Harbor/Harbor, Harbor/Harbor.
  2. 2Review the reported fix. Update Harbor/Harbor to 2.15.3; Harbor/Harbor to 2.14.5; Harbor/Harbor to 2.13.6 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 26, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
Upstream source description

A wide range of Harbor versions allow SSRF via its webhook delivery component which does not properly validate web hook target addresses, allowing usage of private and link-local IP ranges. An authenticated attacker with ProjectAdmin permissions can configure a webhook policy pointing to a private internal address. When a project event fires, Harbor jobservice makes unauthenticated outbound HTTP POST requests to the target. If the target answers with an error status, the response body is written to the webhook execution log, which project members can read, potentially exposing cloud metadata or other network-restricted resources.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Mattermost OpenID discovery endpoint request bypasses outbound connection filtering, allowing SSRF by a System AdministratorAlso CWE-918

Record context

Vulnerability class
SSRF
EPSS
Not reported
CWE IDs
CWE-918
Source
CVE List V5
Source checked
Oct 26, 2026
References
1 linked source
Open source record