CVE-2026-72691

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM 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 mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever any docId parameter is supplied, even one corresponding to no real document, allowing the authentication gate to be bypassed by supplying an arbitrary string as docId.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 10, 2026

Last Modified

August 26, 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-2026-72691(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 15× in last 7d / 88× 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.

Showing the most recent 100 of 192 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 22:52 UTCGHSA enrichment
  3. 2026-10-04 05:26 UTCEG score recompute
  4. 2026-10-04 05:26 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-03 00:55 UTCEG score recompute
  7. 2026-10-03 00:55 UTCGHSA enrichment
  8. 2026-10-02 09:23 UTCEG score recompute
  9. 2026-10-02 09:23 UTCGHSA enrichment
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-10-01 10:08 UTCGHSA enrichment
  12. 2026-09-30 22:42 UTCEG score recompute
  13. 2026-09-30 22:42 UTCGHSA enrichment
  14. 2026-09-29 05:25 UTCEG score recompute
  15. 2026-09-29 05:25 UTCGHSA enrichment
  16. 2026-09-28 13:52 UTCEPSS rescore
  17. 2026-09-28 04:24 UTCGHSA enrichment
  18. 2026-09-27 16:58 UTCEG score recompute
  19. 2026-09-27 16:58 UTCGHSA enrichment
  20. 2026-09-27 13:48 UTCEPSS rescore
  21. 2026-09-26 15:59 UTCEPSS rescore
  22. 2026-09-25 04:05 UTCEG score recompute
  23. 2026-09-25 04:05 UTCGHSA enrichment
  24. 2026-09-24 08:51 UTCGHSA enrichment
  25. 2026-09-23 21:25 UTCEG score recompute
Show 75 more
  1. 2026-09-23 21:25 UTCGHSA enrichment
  2. 2026-09-23 17:54 UTCEPSS rescore
  3. 2026-09-23 10:00 UTCGHSA enrichment
  4. 2026-09-22 22:33 UTCEG score recompute
  5. 2026-09-22 22:33 UTCGHSA enrichment
  6. 2026-09-22 11:03 UTCGHSA enrichment
  7. 2026-09-21 23:14 UTCEG score recompute
  8. 2026-09-21 23:14 UTCGHSA enrichment
  9. 2026-09-21 21:09 UTCEPSS rescore
  10. 2026-09-21 11:16 UTCGHSA enrichment
  11. 2026-09-20 20:25 UTCEG score recompute
  12. 2026-09-20 20:25 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 01:11 UTCEG score recompute
  15. 2026-09-20 01:11 UTCGHSA enrichment
  16. 2026-09-19 13:32 UTCGHSA enrichment
  17. 2026-09-19 02:06 UTCEG score recompute
  18. 2026-09-19 02:06 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-18 13:59 UTCGHSA enrichment
  21. 2026-09-18 02:29 UTCEG score recompute
  22. 2026-09-18 02:29 UTCGHSA enrichment
  23. 2026-09-17 15:03 UTCGHSA enrichment
  24. 2026-09-17 00:49 UTCEG score recompute
  25. 2026-09-17 00:49 UTCGHSA enrichment
  26. 2026-09-16 14:08 UTCEPSS rescore
  27. 2026-09-16 05:15 UTCEPSS rescore
  28. 2026-09-16 02:38 UTCGHSA enrichment
  29. 2026-09-15 14:02 UTCEG score recompute
  30. 2026-09-15 14:02 UTCGHSA enrichment
  31. 2026-09-15 03:12 UTCEPSS rescore
  32. 2026-09-15 00:50 UTCGHSA enrichment
  33. 2026-09-14 13:24 UTCGHSA enrichment
  34. 2026-09-14 01:56 UTCEG score recompute
  35. 2026-09-14 01:56 UTCGHSA enrichment
  36. 2026-09-13 14:30 UTCGHSA enrichment
  37. 2026-09-13 03:04 UTCGHSA enrichment
  38. 2026-09-12 15:38 UTCEG score recompute
  39. 2026-09-12 15:38 UTCGHSA enrichment
  40. 2026-09-12 15:02 UTCEPSS rescore
  41. 2026-09-12 04:12 UTCGHSA enrichment
  42. 2026-09-11 16:43 UTCEG score recompute
  43. 2026-09-11 16:43 UTCGHSA enrichment
  44. 2026-09-11 14:53 UTCEPSS rescore
  45. 2026-09-11 05:17 UTCGHSA enrichment
  46. 2026-09-10 17:51 UTCEG score recompute
  47. 2026-09-10 17:51 UTCGHSA enrichment
  48. 2026-09-10 09:35 UTCEPSS rescore
  49. 2026-09-10 06:24 UTCGHSA enrichment
  50. 2026-09-09 18:33 UTCEG score recompute
  51. 2026-09-09 18:33 UTCGHSA enrichment
  52. 2026-09-09 05:54 UTCEG score recompute
  53. 2026-09-09 05:54 UTCGHSA enrichment
  54. 2026-09-08 22:01 UTCEPSS rescore
  55. 2026-09-08 04:52 UTCGHSA enrichment
  56. 2026-09-07 17:26 UTCEG score recompute
  57. 2026-09-07 17:26 UTCGHSA enrichment
  58. 2026-09-06 14:40 UTCEG score recompute
  59. 2026-09-06 14:40 UTCGHSA enrichment
  60. 2026-09-06 13:48 UTCEPSS rescore
  61. 2026-09-06 03:14 UTCGHSA enrichment
  62. 2026-09-05 15:45 UTCEG score recompute
  63. 2026-09-05 15:45 UTCGHSA enrichment
  64. 2026-09-05 02:08 UTCEG score recompute
  65. 2026-09-05 02:08 UTCGHSA enrichment
  66. 2026-09-04 08:27 UTCEG score recompute
  67. 2026-09-04 08:27 UTCGHSA enrichment
  68. 2026-09-04 05:07 UTCEPSS rescore
  69. 2026-09-03 17:04 UTCGHSA enrichment
  70. 2026-09-03 02:58 UTCEG score recompute
  71. 2026-09-03 02:58 UTCGHSA enrichment
  72. 2026-09-02 14:12 UTCEPSS rescore
  73. 2026-09-02 06:31 UTCGHSA enrichment
  74. 2026-09-01 16:46 UTCEG score recompute
  75. 2026-09-01 16:46 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-72691?
CVE-2026-72691 is a high vulnerability published on August 10, 2026. An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever any…
When was CVE-2026-72691 disclosed?
CVE-2026-72691 was first published on August 10, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72691 actively exploited?
CVE-2026-72691 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72691?
CVE-2026-72691 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72691?
No fix for CVE-2026-72691 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-72691 are linked in the Vendor Advisories panel on this page.

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