CVE-2026-92760

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

Shlink through 5.1.6 fails to enforce API key role restrictions when issuing Mercure subscription tokens, allowing restricted keys to subscribe to all topics. Attackers with author-only or domain-only keys can access the mercure-info endpoint to receive visit data including referrer, user agent, geolocation, and full short URL objects for URLs outside their authorization boundary.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 23, 2026

Advisory Details (5)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Shlink through 5.1.6 Mercure Token Authorization Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/shlink-through-5.1.6-mercure-token-authorization-bypass
generic

shlink-common/src/Mercure/LcobucciJwtProvider.php at main · shlinkio/shlink-common · GitHub

https://github.com/shlinkio/shlink-common/blob/main/src/Mercure/LcobucciJwtProvider.php#L38-L41
generic

shlink/module/Rest/src/Action/MercureInfoAction.php at v5.1.6 · shlinkio/shlink · GitHub

https://github.com/shlinkio/shlink/blob/v5.1.6/module/Rest/src/Action/MercureInfoAction.php#L26-L42
generic

GitHub - shlinkio/shlink: The definitive self-hosted URL shortener · GitHub

https://github.com/shlinkio/shlink
generic

API key role bypass via Mercure subscription token grants real-time access to other keys' visit data · Issue #2633 · shlinkio/shlink · GitHub

https://github.com/shlinkio/shlink/issues/2633

Vendor Advisories for CVE-2026-92760(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 / 27× 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. 2026-09-24 19:43 UTCEG score recompute
  2. 2026-09-24 19:43 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 17:20 UTCGHSA enrichment
  6. 2026-09-23 06:08 UTCEG score recompute
  7. 2026-09-23 06:08 UTCGHSA enrichment
  8. 2026-09-22 16:01 UTCEPSS rescore
  9. 2026-09-22 03:45 UTCEG score recompute
  10. 2026-09-22 03:45 UTCGHSA enrichment
  11. 2026-09-21 21:09 UTCEPSS rescore
  12. 2026-09-21 01:23 UTCEG score recompute
  13. 2026-09-21 01:23 UTCGHSA enrichment
  14. 2026-09-20 20:16 UTCEPSS rescore
  15. 2026-09-19 23:00 UTCEG score recompute
  16. 2026-09-19 23:00 UTCGHSA enrichment
  17. 2026-09-18 20:37 UTCEG score recompute
  18. 2026-09-18 20:37 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-17 19:32 UTCEPSS rescore
  21. 2026-09-17 17:59 UTCEG score recompute
  22. 2026-09-17 17:59 UTCGHSA enrichment
  23. 2026-09-17 15:26 UTCEG score recompute
  24. 2026-09-17 15:26 UTCGHSA enrichment
  25. 2026-09-16 21:24 UTCEG score recompute
Show 2 more
  1. 2026-09-16 20:40 UTCEG score recompute
  2. 2026-09-16 20:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-92760?
CVE-2026-92760 is a medium vulnerability published on September 16, 2026. Shlink through 5.1.6 fails to enforce API key role restrictions when issuing Mercure subscription tokens, allowing restricted keys to subscribe to all topics. Attackers with author-only or domain-only keys can access the mercure-info endpoint to receive visit data including referrer, user agent,…
When was CVE-2026-92760 disclosed?
CVE-2026-92760 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-92760 actively exploited?
CVE-2026-92760 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.0% of all scored CVEs.
What is the CVSS score of CVE-2026-92760?
CVE-2026-92760 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-92760?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-92760, 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-2026-92760

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