CVE-2026-19863

CRITICALPre-NVD 9.39.3
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (43rd 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
Elevated

Also known asEUVD-2026-101993 (ENISA EUVD)Source: ENISA EUVD

9.3EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule 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: 0.5%CVSS: 9.3Exploit: 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.

The CVE record's CNA (Eclipse Foundation) lists Eclipse Foundation org.eclipse.jetty:jetty-ethereum versions 12.1.0 up to and including 12.1.12 as affected. No release containing a fix is confirmed on record.

An unauthenticated client may access certain protected resources when using EthereumAuthenticator if the request path contains the configured login path.

This is caused by the authenticator using an unanchored substring match when identifying the login page. If the login path appears later within a protected request path, the request may be treated as the login page and its authentication or role requirement replaced with ALLOWED.

Exploitation requires the protected resource path to contain the configured login path as a later segment. Explicitly FORBIDDEN routes are not affected.

CVSS
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
73
EG Risk 73/100

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)
Severity93% × 45%
Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
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, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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: No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
43rd
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 (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.

EG Severity
9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.5% 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.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, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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)3 days if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

October 15, 2026

Last Modified

October 15, 2026

Advisory Details (1)

Auto-updated Oct 15, 2026
No fix on record yet.
Web page

Jetty EthereumAuthenticator unanchored login-path matching bypasses authentication and role constraints (#230) · Issues · Eclipse Projects Security / cve-assignment · GitLab

https://gitlab.eclipse.org/security/cve-assignment/-/work_items/230

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 31× 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.

  1. 2026-11-13 00:12 UTCEchelonGraph re-scored
  2. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-11-12 01:27 UTCEchelonGraph re-scored
  4. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-11-11 02:42 UTCEchelonGraph re-scored
  6. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-11-10 09:43 UTCEchelonGraph re-scored
  8. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-11-09 10:56 UTCEchelonGraph re-scored
  10. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-11-08 12:11 UTCEchelonGraph re-scored
  12. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-11-07 13:24 UTCEchelonGraph re-scored
  14. 2026-11-06 16:37 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-11-06 14:39 UTCEchelonGraph re-scored
  16. 2026-11-06 02:25 UTCOSV refresh
  17. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-11-04 17:09 UTCEchelonGraph re-scored
  19. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-11-03 18:24 UTCEchelonGraph re-scored
  21. 2026-11-03 16:47 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  22. 2026-11-03 04:33 UTCEchelonGraph re-scored
  23. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-11-02 05:32 UTCEchelonGraph re-scored
  25. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
Show 40 more
  1. 2026-11-01 06:48 UTCEchelonGraph re-scored
  2. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-10-31 08:02 UTCEchelonGraph re-scored
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-10-30 09:17 UTCEchelonGraph re-scored
  6. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-29 10:32 UTCEchelonGraph re-scored
  8. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-28 11:46 UTCEchelonGraph re-scored
  10. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-27 06:38 UTCEchelonGraph re-scored
  12. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-26 04:14 UTCEchelonGraph re-scored
  14. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-25 14:44 UTCEchelonGraph re-scored
  16. 2026-10-25 05:29 UTCEchelonGraph re-scored
  17. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  18. 2026-10-24 06:43 UTCEchelonGraph re-scored
  19. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-10-23 07:56 UTCEchelonGraph re-scored
  21. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  22. 2026-10-22 09:10 UTCEchelonGraph re-scored
  23. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  24. 2026-10-21 10:24 UTCEchelonGraph re-scored
  25. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  26. 2026-10-20 11:39 UTCEchelonGraph re-scored
  27. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  28. 2026-10-19 13:08 UTCEchelonGraph re-scored
  29. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  30. 2026-10-18 03:57 UTCEchelonGraph re-scored
  31. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  32. 2026-10-17 13:15 UTCEchelonGraph re-scored
  33. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  34. 2026-10-16 14:28 UTCEchelonGraph re-scored
  35. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  36. 2026-10-15 14:27 UTCEchelonGraph re-scored
  37. 2026-10-15 13:39 UTCEchelonGraph re-scored
  38. 2026-10-15 10:26 UTCEchelonGraph re-scored
  39. 2026-10-15 09:54 UTCEchelonGraph re-scoredFirst assessed: 9.3 CRITICAL
  40. 2026-10-15 09:52 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-19863?
CVE-2026-19863 is a critical-severity vulnerability; its CVE record was published on October 15, 2026. An unauthenticated client may access certain protected resources when using EthereumAuthenticator if the request path contains the configured login path. This is caused by the authenticator using an unanchored substring match when identifying the login page. If the login path appears later within a…
When was the CVE record for CVE-2026-19863 published?
The CVE record for CVE-2026-19863 was published on October 15, 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 15, 2026; the record at its source may have been updated since.
Is CVE-2026-19863 actively exploited?
CVE-2026-19863 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19863?
CVE-2026-19863 has a CVSS base score of 9.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19863?
No fix for CVE-2026-19863 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix. The CVE record's CNA (Eclipse Foundation) lists Eclipse Foundation org.eclipse.jetty:jetty-ethereum versions 12.1.0 up to and including 12.1.12 as affected. No release containing a fix is confirmed on record.

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