CVE-2026-50886

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-15. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

Incorrect access control in the webhook management component of Project Firefly III v6.5.9 allows attackers to scan internal resources via a crafted POST request.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
72(Attend)
EG Risk 72/100SSVC: Attend

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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 16, 2026

Advisory Details (1)

Auto-updated Aug 1, 2026
No patch confirmed yet.
generic

Reference for CVE-2026-50886 · GitHub

https://gist.github.com/pyuysig/f5395f90753ba652835ba9c6abf4c4ae

Vendor Advisories for CVE-2026-50886(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
composergrumpydictator/firefly-iii—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
grumpydictator/firefly-iii3.0.0 ... v6.5.9 (409 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 44× 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 390 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Same product

2 shown

composer:grumpydictator/firefly-iii

Frequently asked(5)

What is CVE-2026-50886?
CVE-2026-50886 is a critical vulnerability published on June 15, 2026. Incorrect access control in the webhook management component of Project Firefly III v6.5.9 allows attackers to scan internal resources via a crafted POST request.
When was CVE-2026-50886 disclosed?
CVE-2026-50886 was first published in the National Vulnerability Database on June 15, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50886 actively exploited?
CVE-2026-50886 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 75.7% of all scored CVEs.
What is the CVSS score of CVE-2026-50886?
CVE-2026-50886 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-50886?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50886, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-50886

Explore →

Is Your Infrastructure Affected by CVE-2026-50886?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs