CVE-2026-61639

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 59% 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
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.5Exploit: None knownExposed: 0

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

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints/db/restore.php calls ZipArchive::extractTo() without validating entry names for ../ sequences. Admin uploads crafted zip with entry logos/../../endpoints/shell.php to write webshell to webroot. Extension filter only applies to post-extraction logo copy step. This issue has been patched in version 4.9.6.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity85% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 8, 2026

Advisory Details (4)

Auto-updated Aug 31, 2026
Patch available. Sources: github_release, github, github_pr, github_commit.
github_release Patch Available

v4.9.6

Patch available: ellite/Wallos v4.9.6

https://github.com/ellite/Wallos/releases/tag/v4.9.6
github_commit Patch Available

commit b75f13d0ffa3 (ellite/Wallos)

Patch available: ellite/Wallos v4.9.6 (contains commit b75f13d0ffa3)

https://github.com/ellite/Wallos/commit/b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3
github_pr Patch Available

chore(main): release 4.9.6

Patch available: ellite/Wallos v4.9.6 (PR #1092 merged 2026-06-22)

https://github.com/ellite/Wallos/pull/1092
github Patch Available

Zip Slip path traversal in database restore writes files to webroot · Advisory · ellite/Wallos · GitHub

https://github.com/ellite/Wallos/security/advisories/GHSA-3vg2-cxpg-m43g

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 41× 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. 2026-09-25 02:18 UTCEG score recompute
  2. 2026-09-24 00:24 UTCEG score recompute
  3. 2026-09-23 17:54 UTCEPSS rescore
  4. 2026-09-22 22:31 UTCEG score recompute
  5. 2026-09-22 09:32 UTCEG score recompute
  6. 2026-09-21 07:35 UTCEG score recompute
  7. 2026-09-20 20:16 UTCEPSS rescore
  8. 2026-09-19 16:47 UTCEG score recompute
  9. 2026-09-19 03:51 UTCEG score recompute
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 01:59 UTCEG score recompute
  12. 2026-09-16 23:54 UTCEG score recompute
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 10:58 UTCEG score recompute
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 09:04 UTCEG score recompute
  17. 2026-09-13 18:16 UTCEG score recompute
  18. 2026-09-12 16:24 UTCEG score recompute
  19. 2026-09-12 03:27 UTCEG score recompute
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 14:30 UTCEG score recompute
  22. 2026-09-11 09:37 UTCEPSS rescore
  23. 2026-09-10 12:38 UTCEG score recompute
  24. 2026-09-09 10:09 UTCEG score recompute
  25. 2026-09-08 22:01 UTCEPSS rescore
Show 16 more
  1. 2026-09-07 16:49 UTCEG score recompute
  2. 2026-09-07 16:01 UTCEPSS rescore
  3. 2026-09-06 14:54 UTCEG score recompute
  4. 2026-09-06 13:47 UTCEPSS rescore
  5. 2026-09-06 01:57 UTCEG score recompute
  6. 2026-09-05 00:02 UTCEG score recompute
  7. 2026-09-04 11:06 UTCEG score recompute
  8. 2026-09-04 05:07 UTCEPSS rescore
  9. 2026-09-02 20:02 UTCEG score recompute
  10. 2026-09-02 14:12 UTCEPSS rescore
  11. 2026-09-01 15:41 UTCEG score recompute
  12. 2026-09-01 14:50 UTCEG score recompute
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-08-31 21:21 UTCEG score recompute
  15. 2026-08-31 20:50 UTCEG score recompute
  16. 2026-08-31 20:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-61639?
CVE-2026-61639 is a high vulnerability published on August 31, 2026. Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints/db/restore.php calls ZipArchive::extractTo() without validating entry names for ../ sequences. Admin uploads crafted zip with entry logos/../../endpoints/shell.php to write webshell to…
When was CVE-2026-61639 disclosed?
CVE-2026-61639 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61639 actively exploited?
CVE-2026-61639 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 59.2% of all scored CVEs.
What is the CVSS score of CVE-2026-61639?
CVE-2026-61639 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-61639?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61639, 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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