CVE-2026-36453

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-09-13. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

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

Rhymix before 2.1.31 allows insecure direct object reference, aka RVE-2026-1. Arbitrary files can be accessed via extra variables.

CVSS v3
7.4
EG Score
7.4(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

September 13, 2026

Last Modified

September 14, 2026

Advisory Details (2)

Auto-updated Sep 13, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit f131a616eb99 (rhymix/rhymix)

Fix landed in rhymix/rhymix commit f131a616eb99 — awaiting tagged release

https://github.com/rhymix/rhymix/commit/f131a616eb990e2b070a8381c3106ae979d40989
generic

Rhymix - Rhymix 2.1.31 Release Notes [SECURITY]

https://rhymix.org/community/1932364

Vendor Advisories for CVE-2026-36453(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 30× in last 7d / 30× 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. 2026-09-19 07:16 UTCGHSA enrichment
  2. 2026-09-18 20:12 UTCEG score recompute
  3. 2026-09-18 20:12 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 09:06 UTCGHSA enrichment
  7. 2026-09-17 22:01 UTCEG score recompute
  8. 2026-09-17 22:01 UTCGHSA enrichment
  9. 2026-09-17 19:30 UTCEPSS rescore
  10. 2026-09-17 10:56 UTCGHSA enrichment
  11. 2026-09-16 23:51 UTCEG score recompute
  12. 2026-09-16 23:51 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 12:46 UTCEG score recompute
  15. 2026-09-16 12:46 UTCGHSA enrichment
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-16 01:42 UTCGHSA enrichment
  18. 2026-09-15 14:37 UTCGHSA enrichment
  19. 2026-09-15 03:31 UTCEG score recompute
  20. 2026-09-15 03:31 UTCGHSA enrichment
  21. 2026-09-15 03:11 UTCEPSS rescore
  22. 2026-09-14 16:26 UTCEG score recompute
  23. 2026-09-14 16:26 UTCGHSA enrichment
  24. 2026-09-14 15:55 UTCEG score recompute
  25. 2026-09-14 15:55 UTCGHSA enrichment
Show 5 more
  1. 2026-09-14 08:23 UTCEG score recompute
  2. 2026-09-14 08:23 UTCGHSA enrichment
  3. 2026-09-13 21:19 UTCEG score recompute
  4. 2026-09-13 20:24 UTCEG score recompute
  5. 2026-09-13 20:24 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-36453?
CVE-2026-36453 is a high vulnerability published on September 13, 2026. Rhymix before 2.1.31 allows insecure direct object reference, aka RVE-2026-1. Arbitrary files can be accessed via extra variables.
When was CVE-2026-36453 disclosed?
CVE-2026-36453 was first published in the National Vulnerability Database on September 13, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-36453 actively exploited?
CVE-2026-36453 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 94.4% of all scored CVEs.
What is the CVSS score of CVE-2026-36453?
CVE-2026-36453 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-36453?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-36453, 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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