CVE-2026-73842

CRITICALPre-NVD 9.09.0
EchelonGraph scoreMEDIUM confidence

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

Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-04. A secondary CVSS source baseline 9.0; sources differ by 0.0.

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

Also known asEUVD-2026-58516 (ENISA EUVD) · GHSA-rh53-xvx2-j327 (GitHub Security Advisories) · GO-2026-6428 (OSV.dev)Source: ENISA EUVD

9.0EG
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: 9.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.3, 1.1.3, and 1.2.0-rc.2, internal/cluster-gateway/server.go exposed /api/proxy/, /api/exec/, and /api/wirelogs/ on an internal listener without requiring a client certificate or token, allowing any network-reachable caller to read tenant Kubernetes Secrets, mutate workloads, and execute commands across connected data planes. This issue is fixed in versions 1.0.3, 1.1.3, and 1.2.0-rc.2.

CVSS v3
9.0
EG Score
9.0CRITICALmedium confidence
EG Risk
41
EG Risk 41/100

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)
Severity90% × 45%
Impact severity (EG Severity): CVSS 9.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
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
19th
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 (9.0): severity, escalated by confirmed exploitation. This CVE's 9.0 is its impact severity (EG Severity), not escalated.

EG Severity
9.0 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% 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 13, 2026

Last Modified

September 8, 2026

Advisory Details (10)

Auto-updated Aug 13, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
GitHub release Patch Available

v1.2.0-rc.2

Patch available: openchoreo/openchoreo v1.2.0-rc.2 (pre-release)

https://github.com/openchoreo/openchoreo/releases/tag/v1.2.0-rc.2
GitHub release Patch Available

v1.1.3

Patch available: openchoreo/openchoreo v1.1.3

https://github.com/openchoreo/openchoreo/releases/tag/v1.1.3
GitHub release Patch Available

v1.0.3

Patch available: openchoreo/openchoreo v1.0.3

https://github.com/openchoreo/openchoreo/releases/tag/v1.0.3
GitHub commit

commit e3da3c63dcf0 (openchoreo/openchoreo)

Fix landed in openchoreo/openchoreo commit e3da3c63dcf0 — awaiting tagged release

https://github.com/openchoreo/openchoreo/commit/e3da3c63dcf0895c693cb17ce142ef95e959b62a
GitHub commit

commit 93e6f10953cf (openchoreo/openchoreo)

Fix landed in openchoreo/openchoreo commit 93e6f10953cf — awaiting tagged release

https://github.com/openchoreo/openchoreo/commit/93e6f10953cfc249af2222ddb6730d4b0a729129
GitHub commit

commit 50fcae3f1753 (openchoreo/openchoreo)

Fix landed in openchoreo/openchoreo commit 50fcae3f1753 — awaiting tagged release

https://github.com/openchoreo/openchoreo/commit/50fcae3f1753fd0ac3ae655a3fc080a761c49c04
GitHub pull request

feat: add mtls to cluster gateway communication from internal components

Fix merged in openchoreo/openchoreo PR #4259 on 2026-07-22 — awaiting tagged release

https://github.com/openchoreo/openchoreo/pull/4259
GitHub pull request

feat: add mtls to cluster gateway communication from internal components

Fix merged in openchoreo/openchoreo PR #4258 on 2026-07-22 — awaiting tagged release

https://github.com/openchoreo/openchoreo/pull/4258
GitHub pull request

feat: add mtls to cluster gateway communication from internal components

Fix merged in openchoreo/openchoreo PR #4256 on 2026-07-22 — awaiting tagged release

https://github.com/openchoreo/openchoreo/pull/4256
GitHub advisoryMentions a patch (unverified)

cluster-gateway internal proxy performs no caller authentication and is not read-only — data-plane Secret disclosure and arbitrary Kubernetes mutation · Advisory · openchoreo/openchoreo · GitHub

Affected: 1.0.3, 1.1.3, and 1.2.0. Upgrade path: 1.1.x → 1.1.2, 1.0.x and earlier → 1.0.2,

https://github.com/openchoreo/openchoreo/security/advisories/GHSA-rh53-xvx2-j327

Vendor Advisories for CVE-2026-73842(1)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
gogithub.com/openchoreo/openchoreo @ 1.0.3 (fixes < 1.0.3)—ghsa
gogithub.com/openchoreo/openchoreo @ 1.1.3 (fixes >= 1.1.0, < 1.1.3)—ghsa
gogithub.com/openchoreo/openchoreo @ 1.2.0 (fixes >= 1.2.0-rc.1, < 1.2.0-rc.2)—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/openchoreo/openchoreo—
  • every version up to 1.0.3: fixed in 1.0.3
  • 1.1.0 up to 1.1.3: fixed in 1.1.3
  • 1.2.0-rc.1 up to 1.2.0: fixed in 1.2.0
—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 45× 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 188 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 88 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 0.3% · 19th percentile
  2. 2026-11-13 13:29 UTCEchelonGraph re-scored
  3. 2026-11-13 13:29 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  4. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  5. 2026-11-12 13:31 UTCEchelonGraph re-scored
  6. 2026-11-12 13:31 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  7. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  8. 2026-11-11 13:40 UTCEchelonGraph re-scored
  9. 2026-11-11 13:40 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  10. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-11-10 13:48 UTCEchelonGraph re-scored
  12. 2026-11-10 13:48 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  13. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-11-09 13:56 UTCEchelonGraph re-scored
  15. 2026-11-09 13:56 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  16. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-11-08 14:04 UTCEchelonGraph re-scored
  18. 2026-11-08 14:04 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  19. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-11-07 14:11 UTCEchelonGraph re-scored
  21. 2026-11-07 14:11 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  22. 2026-11-06 17:25 UTCOSV refresh
  23. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-11-06 14:19 UTCEchelonGraph re-scored
  25. 2026-11-06 14:19 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
Show 75 more
  1. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-11-05 14:28 UTCEchelonGraph re-scored
  3. 2026-11-05 14:28 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  4. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  5. 2026-11-04 14:36 UTCEchelonGraph re-scored
  6. 2026-11-04 14:36 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  7. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  8. 2026-11-03 14:44 UTCEchelonGraph re-scored
  9. 2026-11-03 14:44 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  10. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-11-02 14:35 UTCEchelonGraph re-scored
  12. 2026-11-02 14:35 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  13. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-11-01 14:43 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  15. 2026-11-01 07:39 UTCGHSA enrichmentGHSA-rh53-xvx2-j327 · GitHub severity CRITICAL · GitHub CVSS 9.0
  16. 2026-11-01 07:39 UTCEchelonGraph re-scored
  17. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-31 14:52 UTCEchelonGraph re-scored
  19. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-30 15:00 UTCEchelonGraph re-scored
  21. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  22. 2026-10-29 15:09 UTCEchelonGraph re-scored
  23. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-10-28 15:17 UTCEchelonGraph re-scored
  25. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  26. 2026-10-27 15:26 UTCEchelonGraph re-scored
  27. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  28. 2026-10-26 15:13 UTCEchelonGraph re-scored
  29. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  30. 2026-10-25 14:05 UTCEchelonGraph re-scored
  31. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  32. 2026-10-24 14:28 UTCEchelonGraph re-scored
  33. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  34. 2026-10-23 14:37 UTCEchelonGraph re-scored
  35. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  36. 2026-10-22 14:36 UTCEchelonGraph re-scored
  37. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  38. 2026-10-21 14:37 UTCEchelonGraph re-scored
  39. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  40. 2026-10-20 14:45 UTCEchelonGraph re-scored
  41. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  42. 2026-10-19 13:54 UTCEchelonGraph re-scored
  43. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  44. 2026-10-18 03:14 UTCEchelonGraph re-scored
  45. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  46. 2026-10-17 14:09 UTCEchelonGraph re-scored
  47. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  48. 2026-10-16 14:16 UTCEchelonGraph re-scored
  49. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  50. 2026-10-15 14:14 UTCEchelonGraph re-scored
  51. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  52. 2026-10-14 08:59 UTCEchelonGraph re-scored
  53. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  54. 2026-10-13 05:33 UTCEchelonGraph re-scored
  55. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  56. 2026-10-12 15:40 UTCEchelonGraph re-scored
  57. 2026-10-11 19:26 UTCEchelonGraph re-scored
  58. 2026-10-11 16:42 UTCEchelonGraph re-scored
  59. 2026-10-11 14:01 UTCEchelonGraph re-scored
  60. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  62. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  63. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  64. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  65. 2026-10-06 17:40 UTCEchelonGraph re-scored
  66. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  67. 2026-10-05 18:57 UTCEchelonGraph re-scored
  68. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  69. 2026-10-05 02:32 UTCEchelonGraph re-scored
  70. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  71. 2026-10-03 19:43 UTCEchelonGraph re-scored
  72. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  73. 2026-10-02 21:51 UTCEchelonGraph re-scored
  74. 2026-10-02 07:24 UTCEchelonGraph re-scored
  75. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 17th percentile

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Frequently asked(5)

What is CVE-2026-73842?
CVE-2026-73842 is a critical-severity vulnerability; its CVE record was published on August 13, 2026. OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.3, 1.1.3, and 1.2.0-rc.2, internal/cluster-gateway/server.go exposed /api/proxy/, /api/exec/, and /api/wirelogs/ on an internal listener without requiring a client certificate or token, allowing any…
When was the CVE record for CVE-2026-73842 published?
The CVE record for CVE-2026-73842 was published on August 13, 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 8, 2026; the record at its source may have been updated since.
Is CVE-2026-73842 actively exploited?
CVE-2026-73842 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73842?
CVE-2026-73842 has a CVSS base score of 9.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73842?
A fix for CVE-2026-73842 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73842 are linked in the Vendor Advisories panel on this page.

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