CVE-2026-72688

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documents via the fileupload Parse cloud function. The function mints MASTER_KEY-signed file access tokens for any caller-supplied URL without performing any session check, defeating the only access control protecting stored contract files.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 10, 2026
No patch confirmed yet.
generic

GitHub - OpenSignLabs/OpenSign: 🔥 The free & Open Source DocuSign alternative · GitHub

https://github.com/OpenSignLabs/OpenSign

Vendor Advisories for CVE-2026-72688(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 31× in last 7d / 48× 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. 2026-08-21 03:19 UTCEG score recompute
  2. 2026-08-21 03:19 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 14:50 UTCGHSA enrichment
  5. 2026-08-20 02:26 UTCEG score recompute
  6. 2026-08-20 02:26 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 14:03 UTCGHSA enrichment
  9. 2026-08-19 01:39 UTCEG score recompute
  10. 2026-08-19 01:39 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:16 UTCGHSA enrichment
  14. 2026-08-18 00:54 UTCEG score recompute
  15. 2026-08-18 00:53 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 12:18 UTCGHSA enrichment
  18. 2026-08-16 23:56 UTCEG score recompute
  19. 2026-08-16 23:56 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 11:34 UTCEG score recompute
  23. 2026-08-16 11:34 UTCGHSA enrichment
  24. 2026-08-16 02:15 UTCEPSS rescore
  25. 2026-08-15 23:12 UTCGHSA enrichment
Show 23 more
  1. 2026-08-15 10:50 UTCEG score recompute
  2. 2026-08-15 10:50 UTCGHSA enrichment
  3. 2026-08-15 01:31 UTCEPSS rescore
  4. 2026-08-14 22:27 UTCGHSA enrichment
  5. 2026-08-14 10:05 UTCEG score recompute
  6. 2026-08-14 10:05 UTCGHSA enrichment
  7. 2026-08-13 22:00 UTCEPSS rescore
  8. 2026-08-13 21:42 UTCGHSA enrichment
  9. 2026-08-13 09:19 UTCGHSA enrichment
  10. 2026-08-12 20:57 UTCEG score recompute
  11. 2026-08-12 20:57 UTCGHSA enrichment
  12. 2026-08-12 13:51 UTCEPSS rescore
  13. 2026-08-12 08:35 UTCGHSA enrichment
  14. 2026-08-11 20:13 UTCEG score recompute
  15. 2026-08-11 20:13 UTCGHSA enrichment
  16. 2026-08-11 07:50 UTCGHSA enrichment
  17. 2026-08-10 19:28 UTCEG score recompute
  18. 2026-08-10 19:28 UTCGHSA enrichment
  19. 2026-08-10 18:35 UTCEG score recompute
  20. 2026-08-10 18:35 UTCGHSA enrichment
  21. 2026-08-10 13:28 UTCEG score recompute
  22. 2026-08-10 12:17 UTCEG score recompute
  23. 2026-08-10 12:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72688?
CVE-2026-72688 is a high vulnerability published on August 10, 2026. A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documents via the fileupload Parse cloud function. The function mints MASTER_KEY-signed file access tokens for any caller-supplied URL without…
When was CVE-2026-72688 disclosed?
CVE-2026-72688 was first published in the National Vulnerability Database on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72688 actively exploited?
CVE-2026-72688 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 59.1% of all scored CVEs.
What is the CVSS score of CVE-2026-72688?
CVE-2026-72688 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-72688?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72688, 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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