CVE-2026-73613

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

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

filebrowser versions before 2.63.19 contain an out-of-scope file deletion vulnerability in the TUS upload cache eviction mechanism that allows authenticated users with only Create permission to delete arbitrary files outside their scope. Attackers can swap an ancestor directory with a symlink during the cache TTL window to redirect the raw os.Remove call to an out-of-scope target, bypassing ScopedFs scope guards and Perm.Delete checks.

CVSS v3
8.2
EG Score
8.2(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

filebrowser before 2.63.19 Out-of-Scope File Deletion via Symlink | Advisories | VulnCheck

https://www.vulncheck.com/advisories/filebrowser-before-out-of-scope-file-deletion-via-symlink
github Patch Available🟡 PoC Available

Out-of-scope file deletion via symlink-following delete in TUS upload-cache eviction · Advisory · filebrowser/filebrowser · GitHub

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m9f5-2232-frp6

Vendor Advisories for CVE-2026-73613(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 33× in last 7d / 38× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 20:22 UTCGHSA enrichment
  3. 2026-08-20 07:27 UTCGHSA enrichment
  4. 2026-08-19 18:31 UTCEG score recompute
  5. 2026-08-19 18:31 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 04:50 UTCGHSA enrichment
  8. 2026-08-18 15:55 UTCEG score recompute
  9. 2026-08-18 15:54 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 02:56 UTCGHSA enrichment
  13. 2026-08-17 13:59 UTCEG score recompute
  14. 2026-08-17 13:59 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 01:04 UTCEG score recompute
  17. 2026-08-17 01:04 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 12:07 UTCEG score recompute
  21. 2026-08-16 12:07 UTCGHSA enrichment
  22. 2026-08-16 02:15 UTCEPSS rescore
  23. 2026-08-15 23:12 UTCGHSA enrichment
  24. 2026-08-15 10:16 UTCEG score recompute
  25. 2026-08-15 10:16 UTCGHSA enrichment
Show 13 more
  1. 2026-08-15 01:31 UTCEPSS rescore
  2. 2026-08-14 21:19 UTCEG score recompute
  3. 2026-08-14 21:19 UTCGHSA enrichment
  4. 2026-08-14 20:24 UTCEG score recompute
  5. 2026-08-14 20:24 UTCGHSA enrichment
  6. 2026-08-14 17:08 UTCEG score recompute
  7. 2026-08-14 17:08 UTCGHSA enrichment
  8. 2026-08-14 14:25 UTCGHSA enrichment
  9. 2026-08-14 01:29 UTCGHSA enrichment
  10. 2026-08-13 12:33 UTCEG score recompute
  11. 2026-08-13 12:33 UTCGHSA enrichment
  12. 2026-08-13 11:42 UTCEG score recompute
  13. 2026-08-13 11:41 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73613?
CVE-2026-73613 is a high vulnerability published on August 13, 2026. filebrowser versions before 2.63.19 contain an out-of-scope file deletion vulnerability in the TUS upload cache eviction mechanism that allows authenticated users with only Create permission to delete arbitrary files outside their scope. Attackers can swap an ancestor directory with a symlink…
When was CVE-2026-73613 disclosed?
CVE-2026-73613 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73613 actively exploited?
CVE-2026-73613 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 70.3% of all scored CVEs.
What is the CVSS score of CVE-2026-73613?
CVE-2026-73613 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-73613?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73613, 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-2026-73613

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