CVE-2026-76366

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

Score 6.5 from GitHub Security Advisory (severity: MODERATE) published 2026-08-20. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-62931 (ENISA EUVD) · GHSA-24cw-c957-pr32 (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: None knownExposed services: Not assessed

Upgrade Splunk SOAR to 8.6.0 or higher (from the CVE record's solution, Cisco Systems, Inc.) — apply it.

In Splunk SOAR versions below 8.6.0, a user with a valid Splunk SOAR account could use Representational State Transfer (REST) API filtering on playbook runs to recover session tokens that compromise all data available to the affected user. The information disclosure is possible because Splunk SOAR does not block REST API filters from matching values that responses otherwise hide. For more information see REST Run Playbook (https://help.splunk.com/en/splunk-soar/soar-cloud/rest-api-reference/run-playbook-endpoints/rest-run-playbook) in the Splunk documentation.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: Upgrade Splunk SOAR to 8.6.0 or higher (from the CVE record's solution, Cisco Systems, Inc.). Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
33rd
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 (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-07). 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 every mission impact level.CISA BOD 26-04: 60 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 every mission impact level.

Upgrade Splunk SOAR to 8.6.0 or higher (from the CVE record's solution, Cisco Systems, Inc.). Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

August 21, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
Fix named in the CVE record's solution (Cisco Systems, Inc.).
Web page

SVD-2026-0804 | Splunk Vulnerability Disclosure

https://advisory.splunk.com/advisories/SVD-2026-0804

Vendor Advisories for CVE-2026-76366(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 8× in last 7d / 32× 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 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). "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 181 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 81 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  2. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  5. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  6. 2026-11-07 19:20 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub severity MODERATE · GitHub CVSS 6.5
  7. 2026-11-07 19:20 UTCEchelonGraph re-scored
  8. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  9. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  10. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  11. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  12. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  15. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  22. 2026-10-25 14:02 UTCEchelonGraph re-scored
  23. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  24. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-10-22 18:53 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-10-22 18:53 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  2. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  4. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  5. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  6. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  7. 2026-10-18 03:13 UTCEchelonGraph re-scored
  8. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  14. 2026-10-12 15:38 UTCEchelonGraph re-scored
  15. 2026-10-11 19:24 UTCEchelonGraph re-scored
  16. 2026-10-11 16:40 UTCEchelonGraph re-scored
  17. 2026-10-11 13:59 UTCEchelonGraph re-scored
  18. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  19. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  20. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  21. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  22. 2026-10-08 06:03 UTCEchelonGraph re-scored
  23. 2026-10-08 06:03 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  24. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  25. 2026-10-07 04:47 UTCEchelonGraph re-scored
  26. 2026-10-07 04:47 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  27. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  28. 2026-10-06 03:41 UTCEchelonGraph re-scored
  29. 2026-10-06 03:41 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  30. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  31. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  32. 2026-10-04 21:22 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  33. 2026-10-03 16:51 UTCEchelonGraph re-scored
  34. 2026-10-03 16:51 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  35. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  36. 2026-10-02 11:06 UTCEchelonGraph re-scored
  37. 2026-10-02 11:06 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  38. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  39. 2026-10-01 09:32 UTCEchelonGraph re-scored
  40. 2026-10-01 09:31 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  41. 2026-09-30 08:32 UTCEchelonGraph re-scored
  42. 2026-09-30 08:32 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  43. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  44. 2026-09-29 06:15 UTCEchelonGraph re-scored
  45. 2026-09-29 06:15 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  46. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  47. 2026-09-28 05:16 UTCEchelonGraph re-scored
  48. 2026-09-28 05:16 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  49. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  50. 2026-09-27 04:17 UTCEchelonGraph re-scored
  51. 2026-09-27 04:17 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  52. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  53. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  54. 2026-09-25 00:47 UTCEchelonGraph re-scored
  55. 2026-09-25 00:47 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  56. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  57. 2026-09-23 20:47 UTCEchelonGraph re-scored
  58. 2026-09-23 20:47 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  59. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  60. 2026-09-22 19:47 UTCEchelonGraph re-scored
  61. 2026-09-22 19:47 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  62. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  63. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  64. 2026-09-21 15:29 UTCEchelonGraph re-scored
  65. 2026-09-21 15:29 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  66. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  67. 2026-09-20 13:53 UTCEchelonGraph re-scored
  68. 2026-09-20 13:53 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  69. 2026-09-19 12:54 UTCEchelonGraph re-scored
  70. 2026-09-19 12:54 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  71. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  72. 2026-09-18 11:54 UTCEchelonGraph re-scored
  73. 2026-09-18 11:54 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5
  74. 2026-09-17 10:54 UTCEchelonGraph re-scored
  75. 2026-09-17 10:54 UTCGHSA enrichmentGHSA-24cw-c957-pr32 · GitHub CVSS 6.5

Frequently asked(5)

What is CVE-2026-76366?
CVE-2026-76366 is a medium-severity vulnerability; its CVE record was published on August 19, 2026. In Splunk SOAR versions below 8.6.0, a user with a valid Splunk SOAR account could use Representational State Transfer (REST) API filtering on playbook runs to recover session tokens that compromise all data available to the affected user. The information disclosure is possible because Splunk SOAR…
When was CVE-2026-76366 made public?
CVE-2026-76366 was made public on August 19, 2026: that is the date its CVE record's CNA, Cisco Systems, Inc., gives for when the vulnerability was made public. The CVE record itself was published on August 19, 2026. EchelonGraph's copy of the record carries a last-modified date of August 21, 2026; the record at its source may have been updated since.
Is CVE-2026-76366 actively exploited?
CVE-2026-76366 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-76366?
CVE-2026-76366 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-76366?
The CVE record's solution for CVE-2026-76366, written by its CNA Cisco Systems, Inc., names the fix: "Upgrade Splunk SOAR to 8.6.0 or higher." The vendor advisories EchelonGraph has for CVE-2026-76366 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-76366

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