CVE-2026-50739

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-06-26. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

A bypass for CVE‑2026‑34913 exists with proper ownership validation that had not been applied to the reverse operation of linking campaigns and trackers through the tracker-campaigns.php script in Revive Adserver 6.0.7 and earlier. As a result, a low‑privileged user could link their trackers to campaigns owned by other managers on the same instance, leading to inconsistent ownership relationships.

CVSS v3
4.3
EG Score
4.3(high)
EPSS
20.6%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
No patch confirmed yet.
generic

HackerOne

https://hackerone.com/reports/3780709

Vendor Advisories for CVE-2026-50739(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 19× in last 7d / 35× 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 16:58 UTCEG score recompute
  2. 2026-07-06 16:57 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 17:57 UTCEG score recompute
  6. 2026-07-05 17:57 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 18:57 UTCEG score recompute
  9. 2026-07-04 18:57 UTCGHSA enrichment
  10. 2026-07-03 19:52 UTCEG score recompute
  11. 2026-07-03 19:52 UTCGHSA enrichment
  12. 2026-07-02 20:51 UTCEG score recompute
  13. 2026-07-02 20:51 UTCGHSA enrichment
  14. 2026-07-01 21:51 UTCEG score recompute
  15. 2026-07-01 21:51 UTCGHSA enrichment
  16. 2026-07-01 15:07 UTCEPSS rescore
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-30 22:50 UTCEG score recompute
  19. 2026-06-30 22:50 UTCGHSA enrichment
  20. 2026-06-29 23:50 UTCEG score recompute
  21. 2026-06-29 23:50 UTCGHSA enrichment
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 00:47 UTCEG score recompute
  25. 2026-06-29 00:47 UTCGHSA enrichment
Show 10 more
  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-28 01:47 UTCEG score recompute
  5. 2026-06-28 01:47 UTCGHSA enrichment
  6. 2026-06-27 03:08 UTCEPSS rescore
  7. 2026-06-27 02:46 UTCEG score recompute
  8. 2026-06-27 02:46 UTCGHSA enrichment
  9. 2026-06-26 03:46 UTCEG score recompute
  10. 2026-06-26 03:46 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-50739?
CVE-2026-50739 is a medium vulnerability published on June 26, 2026. A bypass for CVE‑2026‑34913 exists with proper ownership validation that had not been applied to the reverse operation of linking campaigns and trackers through the tracker-campaigns.php script in Revive Adserver 6.0.7 and earlier. As a result, a low‑privileged user could link their trackers to…
When was CVE-2026-50739 disclosed?
CVE-2026-50739 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50739 actively exploited?
CVE-2026-50739 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50739?
CVE-2026-50739 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-50739?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50739, 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

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