CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2026-64858 vulnerability-operator: IDOR exposing vulnerability reports via unauthenticated Report Handler
Medium (5.3) in ckotzbauer vulnerability-operator. EPSS 0.5% estimated probability of exploitation activity in the next 30 days.
On this page
vulnerability-operator scans SBOMs and Images for vulnerabilities. Prior to version 0.28.16, an unauthenticated information-disclosure vulnerability exposes all vulnerability scan reports served by the operator. The /report/ HTTP endpoint mounts a raw http.FileServer over the reports directory (default /reports) with no authentication, authorization, or middleware. Any client that can reach the operator's HTTP port (default 8080) can list and download every JSON vulnerability report, disclosing CVE IDs, affected package names/versions, and container image identifiers for every workload scanned in the cluster. This issue has been patched in version 0.28.16.
Severity
- EPSS
- 0.5% estimated probability of exploitation activity in the next 30 days; 40th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: PoC · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWEs
- CWE-306 Missing Authentication for Critical Functionality
CWE-548 Exposure of Information Through Directory Listing - Published
- Modified
- Assigned by
- GitHub_M (CNA)
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
Ask an AI about this CVE
Show the prompt
Explain CVE-2026-64858 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-64858?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-64858?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-64858 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Badge for a README or a site
An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:
[](https://cve.bz/cve/CVE-2026-64858)
HTML:
<a href="https://cve.bz/cve/CVE-2026-64858"><img src="https://cve.bz/cve/badge/CVE-2026-64858.svg" alt="CVE-2026-64858"></a>
Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| ckotzbauer vulnerability-operator | < 0.28.16 |
Public exploits
Attack patterns (CAPEC)
- CAPEC-12 Choosing Message Identifier Likelihood: High · Severity: High
- CAPEC-36 Using Unpublished Interfaces or Functionality Likelihood: Medium · Severity: High
- CAPEC-62 Cross Site Request Forgery Likelihood: High · Severity: Very High
- CAPEC-166 Force the System to Reset Values Severity: Medium
- CAPEC-216 Communication Channel Manipulation
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.
History
- The NVD deferred its analysis
Changes since this site first stored the record. The same for every record: /api/public/changes.