CVE-2026-44937

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 92% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.5 could be used by remote attackers to cause a denial of service or a downgrade attack on other repositories on the system.

CVSS v3
8.3
EG Score
8.3(medium)
EPSS
7.6%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 6, 2026

Advisory Details (1)

Auto-updated Jul 6, 2026
Patch available. Sources: github.
github Patch Available

Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components · Advisory · rancher/fleet · GitHub

https://github.com/rancher/fleet/security/advisories/GHSA-jmf4-m7j9-g72r

Vendor Advisories for CVE-2026-44937(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 13× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 18:10 UTCEG score recompute▲ 0.80
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 10:21 UTCMITRE cvelistV5CVSS v3 → 8.3 · CVSS v4 → 8.3
  4. 2026-07-06 06:28 UTCEG score recompute
  5. 2026-07-05 18:46 UTCEG score recompute
  6. 2026-07-05 07:04 UTCEG score recompute
  7. 2026-07-04 19:18 UTCEG score recompute
  8. 2026-07-04 07:36 UTCEG score recompute
  9. 2026-07-03 19:52 UTCEG score recompute
  10. 2026-07-03 08:11 UTCEG score recompute
  11. 2026-07-02 20:29 UTCEG score recompute
  12. 2026-07-02 08:46 UTCEG score recompute
  13. 2026-07-01 21:02 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-44937?
CVE-2026-44937 is a high vulnerability published on July 1, 2026. Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.5 could be used by remote attackers to cause a denial of service or a downgrade attack on other repositories on the…
When was CVE-2026-44937 disclosed?
CVE-2026-44937 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44937 actively exploited?
CVE-2026-44937 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44937?
CVE-2026-44937 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-44937?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44937, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-44937

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