CVE-2026-78555

CRITICALPre-NVD 9.49.4
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (37th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source

Also known asEUVD-2026-65090 (ENISA EUVD) · GHSA-5vmw-j8f5-4j25 (GitHub Security Advisories)Source: ENISA EUVD

9.4EG
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: 0.4%CVSS: 9.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

RansomLook exposed complete API keys in the HTML source of the authenticated /admin/apikeys administration page. Although the interface displayed only a shortened representation of each key, the full token was embedded in hidden form fields used by the enable/disable, private-access, and delete actions.

As a result, API credentials could be recovered by inspecting the page source or DOM. The credentials could also be unintentionally exposed through components that retain or inspect HTTP response bodies, such as debugging proxies, browser caches, monitoring systems, or other intermediaries. An attacker obtaining one of these tokens could subsequently authenticate using the privileges assigned to that key, including access to private data where the key was granted such permissions.

The patch removes API keys from subsequent page rendering and replaces them with SHA-256-derived opaque handles. Administrative actions submit only these handles, which are resolved back to the corresponding token on the server. The full API key is therefore disclosed only once, when it is initially created.

CVSS
9.4
EG Score
9.4CRITICALmedium confidence
EG Risk
42
EG Risk 42/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity94% × 45%
Impact severity (EG Severity): CVSS 9.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 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
0.4%
EPSS %ILE
37th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.4): severity, escalated by confirmed exploitation. This CVE's 9.4 is its impact severity (EG Severity), not escalated.

EG Severity
9.4 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

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.

The score's inputs: 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 24, 2026

Last Modified

October 12, 2026

Advisory Details (1)

Auto-updated Oct 2, 2026
Patch available. Sources: github_commit.
GitHub commit Patch Available

commit b358dfa4f40c (RansomLook/RansomLook)

Patch available: RansomLook/RansomLook 2.1.0 (contains commit b358dfa4f40c)

https://github.com/RansomLook/RansomLook/commit/b358dfa4f40c677a47c602ebbb4473aeae349f5c

Vendor Advisories for CVE-2026-78555(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 61× 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 its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 456 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 356 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  2. 2026-11-12 21:25 UTCEchelonGraph re-scored
  3. 2026-11-12 21:25 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  4. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  5. 2026-11-11 21:22 UTCEchelonGraph re-scored
  6. 2026-11-11 21:22 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  7. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-11-10 21:18 UTCEchelonGraph re-scored
  9. 2026-11-10 21:18 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  10. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-11-09 21:14 UTCEchelonGraph re-scored
  12. 2026-11-09 21:14 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  13. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-11-08 21:11 UTCEchelonGraph re-scored
  15. 2026-11-08 21:11 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  16. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-11-07 21:07 UTCEchelonGraph re-scored
  18. 2026-11-07 21:07 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  19. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-11-06 21:03 UTCEchelonGraph re-scored
  21. 2026-11-06 21:03 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  22. 2026-11-06 18:55 UTCOSV refresh
  23. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-11-05 20:59 UTCEchelonGraph re-scored
  25. 2026-11-05 20:59 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
Show 75 more
  1. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-11-04 20:55 UTCEchelonGraph re-scored
  3. 2026-11-04 20:55 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  4. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-11-03 20:51 UTCEchelonGraph re-scored
  6. 2026-11-03 20:51 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  7. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-11-02 20:46 UTCEchelonGraph re-scored
  9. 2026-11-02 20:46 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  10. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-11-01 20:41 UTCEchelonGraph re-scored
  12. 2026-11-01 20:41 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  13. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-10-31 20:38 UTCEchelonGraph re-scored
  15. 2026-10-31 20:38 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  16. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-10-30 20:34 UTCEchelonGraph re-scored
  18. 2026-10-30 20:34 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  19. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-10-29 20:31 UTCEchelonGraph re-scored
  21. 2026-10-29 20:31 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  22. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-10-28 20:28 UTCEchelonGraph re-scored
  24. 2026-10-28 20:28 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  25. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  26. 2026-10-27 20:23 UTCEchelonGraph re-scored
  27. 2026-10-27 20:23 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  28. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  29. 2026-10-26 20:20 UTCEchelonGraph re-scored
  30. 2026-10-26 20:19 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  31. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  32. 2026-10-25 18:26 UTCEchelonGraph re-scored
  33. 2026-10-25 18:26 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  34. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  35. 2026-10-25 14:00 UTCEchelonGraph re-scored
  36. 2026-10-24 18:17 UTCEchelonGraph re-scored
  37. 2026-10-24 18:17 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  38. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  39. 2026-10-23 18:14 UTCEchelonGraph re-scored
  40. 2026-10-23 18:14 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  41. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  42. 2026-10-22 17:59 UTCEchelonGraph re-scored
  43. 2026-10-22 17:59 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  44. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  45. 2026-10-21 17:32 UTCEchelonGraph re-scored
  46. 2026-10-21 17:32 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  47. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  48. 2026-10-20 17:29 UTCEchelonGraph re-scored
  49. 2026-10-20 17:28 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  50. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  51. 2026-10-20 08:44 UTCEchelonGraph re-scored
  52. 2026-10-20 08:44 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  53. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  54. 2026-10-19 08:38 UTCEchelonGraph re-scored
  55. 2026-10-19 08:37 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  56. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  57. 2026-10-18 08:31 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  58. 2026-10-18 03:11 UTCEchelonGraph re-scored
  59. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  60. 2026-10-17 06:59 UTCEchelonGraph re-scored
  61. 2026-10-17 06:59 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  62. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  63. 2026-10-16 06:54 UTCEchelonGraph re-scored
  64. 2026-10-16 06:54 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  65. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  66. 2026-10-15 05:36 UTCEchelonGraph re-scored
  67. 2026-10-15 05:36 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  68. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  69. 2026-10-14 01:16 UTCEchelonGraph re-scored
  70. 2026-10-14 01:16 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  71. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  72. 2026-10-12 21:25 UTCEchelonGraph re-scored
  73. 2026-10-12 21:25 UTCGHSA enrichmentGHSA-5vmw-j8f5-4j25 · GitHub severity CRITICAL
  74. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  75. 2026-10-12 15:36 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-78555?
CVE-2026-78555 is a critical-severity vulnerability; its CVE record was published on August 24, 2026. RansomLook exposed complete API keys in the HTML source of the authenticated /admin/apikeys administration page. Although the interface displayed only a shortened representation of each key, the full token was embedded in hidden form fields used by the enable/disable, private-access, and delete…
When was the CVE record for CVE-2026-78555 published?
The CVE record for CVE-2026-78555 was published on August 24, 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 October 12, 2026; the record at its source may have been updated since.
Is CVE-2026-78555 actively exploited?
CVE-2026-78555 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78555?
CVE-2026-78555 has a CVSS base score of 9.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-78555?
A fix for CVE-2026-78555 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-78555 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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