CVE-2026-89609

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

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

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-11. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.8EG
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: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ecryptfs: hold msg ctx list lock when cleaning daemon queue

ecryptfs_exorcise_daemon() drops queued messages from a dying daemon without holding ecryptfs_msg_ctx_lists_mux, but ecryptfs_msg_ctx_alloc_to_free() requires that lock.

Take the list lock while moving the queued contexts back to the free list to avoid racing with other global msg ctx list users.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

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)
Severity78% × 45%
The EG Score, 7.8 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
0.2%
EPSS %ILE
6th
KEV
Not listed

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 (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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 11, 2026

Last Modified

September 14, 2026

Advisory Details (4)

Auto-updated Sep 13, 2026
Patch available.
Web page

ecryptfs: hold msg ctx list lock when cleaning daemon queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7e48afafe7abc275f7b6916613bb18b821e7d94a
Web page

ecryptfs: hold msg ctx list lock when cleaning daemon queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/779972513c2fa8c7938e54976f686091dafff22f
Web page

ecryptfs: hold msg ctx list lock when cleaning daemon queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4c02acbe0a2692ca9991c51e62bbe6d6b59dac31
Web page

ecryptfs: hold msg ctx list lock when cleaning daemon queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0d9636ecba34bd553ecf19049f7705505aea62fd

Vendor Advisories for CVE-2026-89609(1)

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

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (360 versions)
  • every version on: no fix on record
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 33× in last 7d / 167× 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 97 of 180 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 83 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-12 14:48 UTCEG score recompute
  4. 2026-10-12 09:11 UTCEG score recompute
  5. 2026-10-12 09:11 UTCVendor advisory
  6. 2026-10-12 09:10 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-11 21:07 UTCVendor advisory
  8. 2026-10-11 21:07 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-11 19:15 UTCEG score recompute
  10. 2026-10-11 16:32 UTCEG score recompute
  11. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-11 13:47 UTCEG score recompute
  13. 2026-10-11 06:50 UTCEG score recompute
  14. 2026-10-11 06:50 UTCVendor advisory
  15. 2026-10-11 06:50 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  16. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-10-10 17:12 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  18. 2026-10-10 04:54 UTCEG score recompute
  19. 2026-10-10 04:54 UTCVendor advisory
  20. 2026-10-10 04:54 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  21. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-09 16:44 UTCVendor advisory
  23. 2026-10-09 16:43 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  24. 2026-10-08 23:15 UTCEG score recompute
  25. 2026-10-08 23:15 UTCVendor advisory
Show 72 more
  1. 2026-10-08 23:14 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  2. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-08 01:40 UTCEG score recompute
  4. 2026-10-08 01:40 UTCVendor advisory
  5. 2026-10-08 01:40 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-07 13:44 UTCVendor advisory
  8. 2026-10-07 13:44 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-07 01:27 UTCEG score recompute
  10. 2026-10-07 01:27 UTCVendor advisory
  11. 2026-10-07 01:27 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-06 13:31 UTCVendor advisory
  14. 2026-10-06 13:31 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-06 01:36 UTCEG score recompute
  16. 2026-10-06 01:36 UTCVendor advisory
  17. 2026-10-06 01:36 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  18. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-05 13:22 UTCVendor advisory
  20. 2026-10-05 13:22 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  21. 2026-10-05 01:11 UTCEG score recompute
  22. 2026-10-05 01:11 UTCVendor advisory
  23. 2026-10-05 01:11 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-04 13:16 UTCVendor advisory
  26. 2026-10-04 13:16 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  27. 2026-10-04 01:20 UTCEG score recompute
  28. 2026-10-04 01:20 UTCVendor advisory
  29. 2026-10-04 01:20 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  30. 2026-10-03 13:24 UTCVendor advisory
  31. 2026-10-03 13:24 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  32. 2026-10-03 01:28 UTCEG score recompute
  33. 2026-10-03 01:28 UTCVendor advisory
  34. 2026-10-03 01:28 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  35. 2026-10-02 13:20 UTCVendor advisory
  36. 2026-10-02 13:20 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  37. 2026-10-02 01:25 UTCEG score recompute
  38. 2026-10-02 01:25 UTCVendor advisory
  39. 2026-10-02 01:25 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  40. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  41. 2026-10-01 13:30 UTCVendor advisory
  42. 2026-10-01 13:30 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  43. 2026-10-01 01:35 UTCEG score recompute
  44. 2026-10-01 01:35 UTCVendor advisory
  45. 2026-10-01 01:35 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  46. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  47. 2026-09-30 13:40 UTCVendor advisory
  48. 2026-09-30 13:40 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  49. 2026-09-30 01:43 UTCEG score recompute
  50. 2026-09-30 01:43 UTCVendor advisory
  51. 2026-09-30 01:43 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  52. 2026-09-29 11:34 UTCVendor advisory
  53. 2026-09-29 11:34 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  54. 2026-09-28 23:36 UTCEG score recompute
  55. 2026-09-28 23:36 UTCVendor advisory
  56. 2026-09-28 23:36 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  58. 2026-09-28 11:41 UTCVendor advisory
  59. 2026-09-28 11:40 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  60. 2026-09-27 23:43 UTCEG score recompute
  61. 2026-09-27 23:43 UTCVendor advisory
  62. 2026-09-27 23:43 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  64. 2026-09-27 11:46 UTCVendor advisory
  65. 2026-09-27 11:46 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-09-26 23:45 UTCEG score recompute
  67. 2026-09-26 23:45 UTCVendor advisory
  68. 2026-09-26 23:45 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8
  69. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  70. 2026-09-26 11:49 UTCEG score recompute
  71. 2026-09-26 11:49 UTCVendor advisory
  72. 2026-09-26 11:48 UTCGHSA enrichmentGHSA-c77f-5fp9-7h2f · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-89609?
CVE-2026-89609 is a high-severity vulnerability; its CVE record was published on September 11, 2026. In the Linux kernel, the following vulnerability has been resolved: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfsexorcisedaemon() drops queued messages from a dying daemon without holding ecryptfsmsgctxlistsmux, but ecryptfsmsgctxallocto_free() requires that lock. Take the…
When was the CVE record for CVE-2026-89609 published?
The CVE record for CVE-2026-89609 was published on September 11, 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 14, 2026; the record at its source may have been updated since.
Is CVE-2026-89609 actively exploited?
CVE-2026-89609 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89609?
CVE-2026-89609 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-89609?
A fix for CVE-2026-89609 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-89609 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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