CVE-2026-61640

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: 0.3%, top 76% 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: 0%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, Admin-configured OIDC token_url and user_info_url in includes/oidc/handle_oidc_callback.php:18-49 are used directly in curl_init() with zero SSRF filtering. Unlike logo/webhook URLs which have validate_webhook_url_for_ssrf(), OIDC URLs bypass all protections. Admin sets URL to http://169.254.169.254/latest/meta-data/ for cloud metadata access or internal network pivoting. This issue has been patched in version 4.9.6.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
53(Track)
EG Risk 53/100SSVC: 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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 8, 2026

Advisory Details (4)

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

SSRF via OIDC Token/UserInfo URL Configuration · Advisory · ellite/Wallos · GitHub

https://github.com/ellite/Wallos/security/advisories/GHSA-x9x5-gh69-q7cm

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× 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. 2026-09-21 03:44 UTCEG score recompute
  2. 2026-09-20 20:16 UTCEPSS rescore
  3. 2026-09-20 03:23 UTCEG score recompute
  4. 2026-09-19 03:03 UTCEG score recompute
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 02:42 UTCEG score recompute
  7. 2026-09-17 02:13 UTCEG score recompute
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 14:03 UTCEG score recompute
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 13:38 UTCEG score recompute
  12. 2026-09-14 01:05 UTCEG score recompute
  13. 2026-09-13 00:44 UTCEG score recompute
  14. 2026-09-12 00:24 UTCEG score recompute
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 12:14 UTCEG score recompute
  17. 2026-09-11 09:37 UTCEPSS rescore
  18. 2026-09-10 11:52 UTCEG score recompute
  19. 2026-09-09 09:23 UTCEG score recompute
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-07 20:32 UTCEG score recompute
  22. 2026-09-07 16:01 UTCEPSS rescore
  23. 2026-09-06 20:09 UTCEG score recompute
  24. 2026-09-06 13:47 UTCEPSS rescore
  25. 2026-09-04 19:27 UTCEG score recompute
Show 10 more
  1. 2026-09-04 07:10 UTCEG score recompute
  2. 2026-09-04 05:07 UTCEPSS rescore
  3. 2026-09-02 18:38 UTCEG score recompute
  4. 2026-09-02 17:46 UTCEG score recompute
  5. 2026-09-02 14:12 UTCEPSS rescore
  6. 2026-09-01 21:45 UTCEG score recompute
  7. 2026-09-01 13:54 UTCEPSS rescore
  8. 2026-08-31 21:21 UTCEG score recompute
  9. 2026-08-31 20:55 UTCEG score recompute
  10. 2026-08-31 20:54 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-61640?
CVE-2026-61640 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, Admin-configured OIDC tokenurl and userinfourl in includes/oidc/handleoidccallback.php:18-49 are used directly in curlinit() with zero SSRF filtering. Unlike logo/webhook URLs which have…
When was CVE-2026-61640 disclosed?
CVE-2026-61640 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-2026-61640 actively exploited?
CVE-2026-61640 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 75.9% of all scored CVEs.
What is the CVSS score of CVE-2026-61640?
CVE-2026-61640 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-61640?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61640, 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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