CVE-2026-8876

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

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

Version 3.0.7 of the Securly Chrome Extension contains hardcoded, plaintext AES passphrases in securly.min.js. These keys decrypt crisis alert keyword data and intervention site data.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
15.4%
KEV
Not listed

Published

June 3, 2026

Last Modified

July 22, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026
No patch confirmed yet. Sources: cert.
cert

VU#595768 - Securly Chrome Extension contains multiple weak encryption and access control vulnerabilities

https://kb.cert.org/vuls/id/595768

Vendor Advisories for CVE-2026-8876(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 9× in last 7d / 58× 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 113 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8876?
CVE-2026-8876 is a high vulnerability published on June 3, 2026. Version 3.0.7 of the Securly Chrome Extension contains hardcoded, plaintext AES passphrases in securly.min.js. These keys decrypt crisis alert keyword data and intervention site data.
When was CVE-2026-8876 disclosed?
CVE-2026-8876 was first published in the National Vulnerability Database on June 3, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8876 actively exploited?
CVE-2026-8876 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8876?
CVE-2026-8876 has a CVSS v3.1 base score of 7.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-8876?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8876, 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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