CVE-2026-68904

HIGHPre-NVD 7.07.0
EchelonGraph scoreMEDIUM confidence

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

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. A secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-80869 (ENISA EUVD) · GHSA-r2pf-9cw4-5j65 (GitHub Security Advisories)Source: ENISA EUVD

7.0EG
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: 0.4%CVSS: 7.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

node-opcua is an OPC UA implementation for TypeScript and Node.js. From 2.0.0 until 2.170.0, node-opcua clients using the default keepSessionAlive setting can enter a repeated reconnection cycle when an OPC UA server's clock skew causes BadInvalidTimestamp responses. ClientSessionKeepAliveManager._ping_server treated the server-originated ServiceFault as a network outage and forced a transport reconnect, while ClientTCP_transport._on_ACK_response used socket.end() after failed HEL/ACK negotiation and could leave the connection in FIN-WAIT-2 when the peer did not close. Repetition at the keepAliveInterval accumulates file descriptors and memory until the client process or container can be terminated by resource exhaustion. This issue is fixed in version 2.170.0.

CVSS v3
7.0
EG Score
7.0HIGHmedium confidence
EG Risk
32
EG Risk 32/100

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)
Severity70% × 45%
Impact severity (EG Severity): CVSS 7.0 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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
38th
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 (7.0): severity, escalated by confirmed exploitation. This CVE's 7.0 is its impact severity (EG Severity), not escalated.

EG Severity
7.0 HIGHCVSS-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 2026-10-31). 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.

A fix is available. 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

September 16, 2026

Last Modified

September 30, 2026

Advisory Details (6)

Auto-updated Sep 16, 2026
Patch available. Sources: github, github_pr, github_commit.
GitHub commit

commit dc406fd2d364 (node-opcua/node-opcua)

Fix landed in node-opcua/node-opcua commit dc406fd2d364 — awaiting tagged release

https://github.com/node-opcua/node-opcua/commit/dc406fd2d364aa69dd173be21ed32a7ff425017a
GitHub commit

commit 4d59197e2dbd (node-opcua/node-opcua)

Fix landed in node-opcua/node-opcua commit 4d59197e2dbd — awaiting tagged release

https://github.com/node-opcua/node-opcua/commit/4d59197e2dbd82791d7f36dad7da178715e0c27a
GitHub commit

commit 481664fa6ba8 (node-opcua/node-opcua)

Fix landed in node-opcua/node-opcua commit 481664fa6ba8 — awaiting tagged release

https://github.com/node-opcua/node-opcua/commit/481664fa6ba8204737c5a92797ff68c3ae780c1c
GitHub commit

commit 1959cbb8946b (node-opcua/node-opcua)

Fix landed in node-opcua/node-opcua commit 1959cbb8946b — awaiting tagged release

https://github.com/node-opcua/node-opcua/commit/1959cbb8946b386d2e24a1cce05b7148099d36e7
GitHub pull request

Fix/socket keep alive

Fix merged in node-opcua/node-opcua PR #1497 on 2026-04-27 — awaiting tagged release

https://github.com/node-opcua/node-opcua/pull/1497
GitHub advisoryMentions a patch (unverified)

[Security] TCP Socket Leak (FIN-WAIT-2) via keepalive reconnection cycle - CWE400 Resource Exhaustion · Advisory · node-opcua/node-opcua · GitHub

https://github.com/node-opcua/node-opcua/security/advisories/GHSA-r2pf-9cw4-5j65

Vendor Advisories for CVE-2026-68904(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npmnode-opcua @ 2.170.0 (fixes >= 2.0.0, < 2.170.0)—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

(3 across 1 ecosystem)
npm(3)
PackageVulnerable rangeFix by version rangeDependents
node-opcua—
  • 2.0.0 up to 2.170.0: fixed in 2.170.0
—
node-opcua-client—
  • 2.0.0 up to 2.170.0: fixed in 2.170.0
—
node-opcua-transport—
  • 2.0.0 up to 2.170.0: fixed in 2.170.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 49× 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.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  2. 2026-11-01 07:40 UTCGHSA enrichmentGHSA-r2pf-9cw4-5j65 · GitHub severity HIGH · GitHub CVSS 7.0
  3. 2026-11-01 07:40 UTCEG score recompute
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  5. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  6. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  7. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  8. 2026-10-27 19:24 UTCEG score recompute
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  10. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  11. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  12. 2026-10-25 14:09 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  14. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  16. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  17. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  18. 2026-10-20 08:58 UTCEG score recompute
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  21. 2026-10-18 03:19 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  23. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
Show 56 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-13 09:59 UTCEG score recompute
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-10-12 15:44 UTCEG score recompute
  5. 2026-10-11 19:29 UTCEG score recompute
  6. 2026-10-11 16:45 UTCEG score recompute
  7. 2026-10-11 14:06 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-10-11 03:48 UTCEG score recompute
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-10 03:08 UTCEG score recompute
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-10-08 18:10 UTCEG score recompute
  14. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-10-08 02:16 UTCEG score recompute
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-10-06 17:20 UTCEG score recompute
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-10-05 19:23 UTCEG score recompute
  20. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-10-05 08:13 UTCEG score recompute
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-10-03 23:13 UTCEG score recompute
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-03 01:10 UTCEG score recompute
  26. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  27. 2026-10-02 03:11 UTCEG score recompute
  28. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  29. 2026-09-30 18:08 UTCEG score recompute
  30. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  31. 2026-09-29 16:51 UTCEG score recompute
  32. 2026-09-29 05:36 UTCEG score recompute
  33. 2026-09-28 18:37 UTCEG score recompute
  34. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  35. 2026-09-27 20:39 UTCEG score recompute
  36. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  37. 2026-09-26 22:42 UTCEG score recompute
  38. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  39. 2026-09-26 11:25 UTCEG score recompute
  40. 2026-09-24 15:05 UTCEG score recompute
  41. 2026-09-24 04:01 UTCEG score recompute
  42. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  43. 2026-09-22 19:06 UTCEG score recompute
  44. 2026-09-22 08:06 UTCEG score recompute
  45. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  46. 2026-09-20 23:12 UTCEG score recompute
  47. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  48. 2026-09-20 01:11 UTCEG score recompute
  49. 2026-09-19 03:14 UTCEG score recompute
  50. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  51. 2026-09-18 05:17 UTCEG score recompute
  52. 2026-09-16 19:25 UTCEG score recompute
  53. 2026-09-16 18:41 UTCEG score recompute
  54. 2026-09-16 17:33 UTCEG score recompute
  55. 2026-09-16 16:36 UTCEG score recomputeFirst assessed: 7.0 HIGH
  56. 2026-09-16 16:34 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68904?
CVE-2026-68904 is a high-severity vulnerability; its CVE record was published on September 16, 2026. node-opcua is an OPC UA implementation for TypeScript and Node.js. From 2.0.0 until 2.170.0, node-opcua clients using the default keepSessionAlive setting can enter a repeated reconnection cycle when an OPC UA server's clock skew causes BadInvalidTimestamp responses.…
When was the CVE record for CVE-2026-68904 published?
The CVE record for CVE-2026-68904 was published on September 16, 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 30, 2026; the record at its source may have been updated since.
Is CVE-2026-68904 actively exploited?
CVE-2026-68904 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-68904?
CVE-2026-68904 has a CVSS base score of 7.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-68904?
A fix for CVE-2026-68904 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68904 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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