CVE-2026-55643

HIGHNVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Snipe-IT is an IT asset/license management system. Prior to 8.6.3, a company-scoped user in FMCS floater mode can access users whose company_id is null because broad API queries and bulk web actions do not consistently apply isCurrentUserHasAccess. The /api/v1/users and /api/v1/users/{id}/licenses endpoints can expose personal data and assigned licenses, /users/bulkeditsave can modify out-of-scope profiles, and /users/merge can soft-delete users and transfer assigned assets. This issue is fixed in version 8.6.3.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

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 (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 19, 2026

Last Modified

September 30, 2026

Advisory Details (3)

Auto-updated Aug 19, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

v8.6.3

Patch available: grokability/snipe-it v8.6.3

https://github.com/grokability/snipe-it/releases/tag/v8.6.3
GitHub commit Patch Available

commit fbe05a8df474 (grokability/snipe-it)

Patch available: grokability/snipe-it v8.6.3 (contains commit fbe05a8df474)

https://github.com/grokability/snipe-it/commit/fbe05a8df4742729a9b0756c016d45f48246cc7b
GitHub advisoryMentions a patch (unverified)

Tenant Isolation Bypass in FMCS Floater Mode · Advisory · grokability/snipe-it · GitHub

https://github.com/grokability/snipe-it/security/advisories/GHSA-c6w2-j4wq-mvwg

Vendor Advisories for CVE-2026-55643(1)

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

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
snipe/snipe-it3.2.0 ... v8.6.2 (279 versions)
  • every version up to 8.6.3: fixed in 8.6.3
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 56× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-12 15:55 UTCEG score recompute
  4. 2026-10-11 19:38 UTCEG score recompute
  5. 2026-10-11 16:54 UTCEG score recompute
  6. 2026-10-11 14:16 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-10-08 07:40 UTCEG score recompute
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  13. 2026-10-06 18:49 UTCEG score recompute
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-10-06 07:57 UTCEG score recompute
  16. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-10-05 01:45 UTCEG score recompute
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  19. 2026-10-03 16:55 UTCEG score recompute
  20. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  21. 2026-10-03 00:42 UTCEG score recompute
  22. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  23. 2026-10-02 01:21 UTCEG score recompute
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  25. 2026-10-01 01:23 UTCEG score recompute
Show 75 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-09-30 13:13 UTCEG score recompute▲ 1.20
  3. 2026-09-30 13:12 UTCNVD updateCVSS v3 → 8.8
  4. 2026-09-30 08:42 UTCEG score recompute
  5. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  6. 2026-09-29 02:13 UTCEG score recompute
  7. 2026-09-28 15:23 UTCEG score recompute
  8. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-09-27 17:43 UTCEG score recompute
  10. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-09-27 06:54 UTCEG score recompute
  12. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-09-24 19:44 UTCEG score recompute
  14. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-09-23 20:09 UTCEG score recompute
  16. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  17. 2026-09-22 21:06 UTCEG score recompute
  18. 2026-09-21 23:27 UTCEG score recompute
  19. 2026-09-21 01:47 UTCEG score recompute
  20. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  21. 2026-09-19 16:59 UTCEG score recompute
  22. 2026-09-19 06:07 UTCEG score recompute
  23. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  24. 2026-09-17 21:29 UTCEG score recompute
  25. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  26. 2026-09-16 20:05 UTCEG score recompute
  27. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  28. 2026-09-16 06:43 UTCEG score recompute
  29. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  30. 2026-09-15 08:46 UTCEG score recompute
  31. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  32. 2026-09-14 00:14 UTCEG score recompute
  33. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  34. 2026-09-12 15:45 UTCEG score recompute
  35. 2026-09-11 18:07 UTCEG score recompute
  36. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  37. 2026-09-10 09:38 UTCEG score recompute
  38. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  39. 2026-09-09 02:34 UTCEG score recompute
  40. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  41. 2026-09-08 02:30 UTCEG score recompute
  42. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  43. 2026-09-06 17:14 UTCEG score recompute
  44. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  45. 2026-09-05 19:33 UTCEG score recompute
  46. 2026-09-04 21:54 UTCEG score recompute
  47. 2026-09-02 15:19 UTCEG score recompute
  48. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  49. 2026-09-01 17:29 UTCEG score recompute
  50. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  51. 2026-09-01 06:38 UTCEG score recompute
  52. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  53. 2026-08-30 21:47 UTCEG score recompute
  54. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  55. 2026-08-30 10:58 UTCEG score recompute
  56. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  57. 2026-08-29 01:47 UTCEG score recompute
  58. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  59. 2026-08-27 22:12 UTCEG score recompute
  60. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-08-27 00:33 UTCEG score recompute
  62. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  63. 2026-08-25 16:04 UTCEG score recompute
  64. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  65. 2026-08-24 18:26 UTCEG score recompute
  66. 2026-08-23 09:54 UTCEG score recompute
  67. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  68. 2026-08-22 01:27 UTCEG score recompute
  69. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  70. 2026-08-21 03:47 UTCEG score recompute
  71. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  72. 2026-08-19 19:19 UTCEG score recompute
  73. 2026-08-19 18:58 UTCEG score recompute
  74. 2026-08-19 18:38 UTCEG score recomputeFirst assessed: 7.6 HIGH
  75. 2026-08-19 18:37 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-55643?
CVE-2026-55643 is a high-severity vulnerability; its CVE record was published on August 19, 2026. Snipe-IT is an IT asset/license management system. Prior to 8.6.3, a company-scoped user in FMCS floater mode can access users whose company_id is null because broad API queries and bulk web actions do not consistently apply isCurrentUserHasAccess. The /api/v1/users and /api/v1/users/{id}/licenses…
When was the CVE record for CVE-2026-55643 published?
The CVE record for CVE-2026-55643 was published on August 19, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 30, 2026; the record at its source may have been updated since.
Is CVE-2026-55643 actively exploited?
CVE-2026-55643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55643?
CVE-2026-55643 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-55643?
A fix for CVE-2026-55643 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-55643 are linked in the Vendor Advisories panel on this page.

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