CVE-2026-72543

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. 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 insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any contact record via the getcontact Parse cloud function. The function executes with useMasterKey and performs no authentication or authorization checks before returning the requested contact object. An attacker can enumerate and read all contact records including personally identifiable information without credentials.

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
47th
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 11, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
No fix on record yet.
generic

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

https://github.com/OpenSignLabs/OpenSign

Vendor Advisories for CVE-2026-72543(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 20× in last 7d / 89× 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 187 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-72543?
CVE-2026-72543 is a high vulnerability published on August 11, 2026. An insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any contact record via the getcontact Parse cloud function. The function executes with useMasterKey and performs no authentication or authorization checks…
When was CVE-2026-72543 disclosed?
CVE-2026-72543 was first published on August 11, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72543 actively exploited?
CVE-2026-72543 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72543?
CVE-2026-72543 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-2026-72543?
No fix for CVE-2026-72543 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-2026-72543 are linked in the Vendor Advisories panel on this page.

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