CVE-2026-26055

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-02-12. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated
7.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

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

Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. The ATC webhook endpoints lack proper authentication mechanisms, allowing any pod within the cluster network to directly send AdmissionReview requests to the webhook, bypassing Kubernetes API Server authentication. This enables attackers to trigger WASM module execution in the ATC controller context without proper authorization.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100

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)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.7%
EPSS %ILE
50th
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

February 12, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Aug 2, 2026
No fix on record yet. Sources: github.
GitHub advisoryMentions a patch (unverified)

Unauthenticated Admission Webhook Endpoints in Yoke ATC · Advisory · yokecd/yoke · GitHub

https://github.com/yokecd/yoke/security/advisories/GHSA-965m-v4cc-6334

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
gogithub.com/yokecd/yoke—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)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/yokecd/yoke—
  • every version through 0.19.0: no fix on record
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 27× 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.

Showing the most recent 94 of 193 refreshes 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. 6 repeat rows among the latest 100 are merged into the row they repeat. The 99 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  2. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  3. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  4. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  5. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  6. 2026-10-12 16:18 UTCEG score recompute
  7. 2026-10-11 20:00 UTCEG score recompute
  8. 2026-10-11 17:14 UTCEG score recompute
  9. 2026-10-11 14:45 UTCEG score recompute
  10. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  11. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-10-09 10:25 UTCOSV refresh
  14. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  15. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  16. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  17. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  18. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  19. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  20. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  21. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  23. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  24. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
Show 69 more
  1. 2026-09-19 17:30 UTCOSV refresh
  2. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  4. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  7. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  8. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  9. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  10. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  11. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  12. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  13. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  14. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  15. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  16. 2026-08-31 20:34 UTCOSV refresh
  17. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  18. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  19. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  20. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  21. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  22. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  23. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  24. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  25. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  26. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  27. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  28. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  29. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  30. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  31. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  32. 2026-08-14 23:19 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  33. 2026-08-14 10:12 UTCEG score recompute
  34. 2026-08-14 10:12 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  35. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  36. 2026-08-13 02:30 UTCEG score recompute
  37. 2026-08-13 02:30 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  39. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  40. 2026-08-11 08:51 UTCEG score recompute
  41. 2026-08-11 08:51 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  43. 2026-08-10 03:59 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-08-09 14:52 UTCEG score recompute
  45. 2026-08-09 14:52 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  47. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  48. 2026-08-08 11:51 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-08-07 22:01 UTCEG score recompute
  50. 2026-08-07 22:01 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  52. 2026-08-06 03:55 UTCEG score recompute
  53. 2026-08-06 03:55 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  55. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  56. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  57. 2026-08-02 20:42 UTCEG score recompute
  58. 2026-08-02 20:42 UTCGHSA enrichmentGHSA-965m-v4cc-6334 · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  60. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  61. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  62. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  63. 2026-07-28 15:36 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  64. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  65. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  66. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  67. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  68. 2026-07-23 03:07 UTCEG score recompute
  69. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.4% · 33rd percentile

Related CVEs(same product + same CWE)

Same product

1 shown

Go:github.com/yokecd/yoke

Frequently asked(5)

What is CVE-2026-26055?
CVE-2026-26055 is a high-severity vulnerability; its CVE record was published on February 12, 2026. Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. The ATC webhook endpoints lack proper authentication mechanisms, allowing any pod within the cluster network to directly send…
When was the CVE record for CVE-2026-26055 published?
The CVE record for CVE-2026-26055 was published on February 12, 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 June 17, 2026; the record at its source may have been updated since.
Is CVE-2026-26055 actively exploited?
CVE-2026-26055 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (50th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-26055?
CVE-2026-26055 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-26055?
No fix for CVE-2026-26055 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

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