CVE-2026-80591

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 2026-08-28. 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:

f2fs: fix listxattr handling of corrupted xattr entries

Validate the xattr entry before reading its fields in f2fs_listxattr(). Return -EFSCORRUPTED when the entry is outside the valid xattr storage area instead of returning a successful partial result.

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

August 28, 2026

Last Modified

August 29, 2026

Advisory Details (8)

Auto-updated Aug 29, 2026
Patch available.
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5ef5bc304f23c3fe255d4936472378dcb74d0e94
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3c0dbfecd859fd02fe9008f33a83146102ccd9ba
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ec9f79c8d5b28a928e65b67cd138c841571cf502
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7dd01f7d0291583e3e5420c95c7d584e114899bd
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2770041f34b52334ea63351ffb1cc2007a9de46e
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dfa4891c27bccbd83d511a065721e85621f275a1
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c8a10f174316e80d577e6549099b71a7a2111f3f
Web page

f2fs: fix listxattr handling of corrupted xattr entries - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7dfac47e4189692f35230f3064acf2540e6d75fe

Vendor Advisories for CVE-2026-80591(1)

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

Patch Availability(16)

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 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)
  • every version up to 6.1.180-1: fixed in 6.1.180-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.95-1~bpo12+1 (30 versions)
  • every version up to 6.12.96-1: fixed in 6.12.96-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (160 versions)
  • every version up to 7.1.5-1: fixed in 7.1.5-1
—

All Vendor Advisories

(16)

Data Freshness Timeline

(refreshed 22× in last 7d / 160× 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 100 of 246 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. None are among the latest 100 rows. The 146 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. 2026-10-13 06:28 UTCEG score recompute
  3. 2026-10-13 06:28 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-12 14:57 UTCEG score recompute
  6. 2026-10-11 19:21 UTCEG score recompute
  7. 2026-10-11 16:37 UTCEG score recompute
  8. 2026-10-11 13:55 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-10 12:24 UTCVendor advisory
  12. 2026-10-10 12:23 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-10-10 01:23 UTCEG score recompute
  14. 2026-10-10 01:23 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-09 02:48 UTCEG score recompute
  17. 2026-10-09 02:48 UTCVendor advisory
  18. 2026-10-09 02:47 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  19. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-10-08 01:00 UTCEG score recompute
  21. 2026-10-08 01:00 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-07 09:51 UTCVendor advisory
  24. 2026-10-07 09:51 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-10-06 22:47 UTCEG score recompute
Show 75 more
  1. 2026-10-06 22:47 UTCVendor advisory
  2. 2026-10-06 22:47 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  3. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-10-06 11:48 UTCVendor advisory
  5. 2026-10-06 11:48 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-10-06 00:50 UTCEG score recompute
  7. 2026-10-06 00:50 UTCVendor advisory
  8. 2026-10-06 00:50 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-05 12:21 UTCVendor advisory
  11. 2026-10-05 12:21 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-10-05 01:22 UTCEG score recompute
  13. 2026-10-05 01:22 UTCVendor advisory
  14. 2026-10-05 01:22 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-04 14:00 UTCVendor advisory
  17. 2026-10-04 14:00 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  18. 2026-10-04 03:01 UTCVendor advisory
  19. 2026-10-04 03:01 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  20. 2026-10-03 16:02 UTCEG score recompute
  21. 2026-10-03 16:02 UTCVendor advisory
  22. 2026-10-03 16:02 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  23. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-03 04:50 UTCEG score recompute
  25. 2026-10-03 04:50 UTCVendor advisory
  26. 2026-10-03 04:50 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  27. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  28. 2026-10-02 17:51 UTCVendor advisory
  29. 2026-10-02 17:50 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  30. 2026-10-02 06:48 UTCEG score recompute
  31. 2026-10-02 06:48 UTCVendor advisory
  32. 2026-10-02 06:48 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  33. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  34. 2026-10-01 19:50 UTCVendor advisory
  35. 2026-10-01 19:50 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  36. 2026-10-01 06:53 UTCVendor advisory
  37. 2026-10-01 06:52 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  38. 2026-09-30 19:52 UTCEG score recompute
  39. 2026-09-30 19:52 UTCVendor advisory
  40. 2026-09-30 19:51 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  41. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  42. 2026-09-30 03:58 UTCEG score recompute
  43. 2026-09-30 03:58 UTCVendor advisory
  44. 2026-09-30 03:58 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  45. 2026-09-29 11:12 UTCVendor advisory
  46. 2026-09-29 11:12 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  47. 2026-09-28 23:20 UTCEG score recompute
  48. 2026-09-28 23:20 UTCVendor advisory
  49. 2026-09-28 23:20 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  50. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  51. 2026-09-28 12:21 UTCVendor advisory
  52. 2026-09-28 12:21 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-09-28 01:22 UTCVendor advisory
  54. 2026-09-28 01:22 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-09-27 14:24 UTCEG score recompute
  56. 2026-09-27 14:24 UTCVendor advisory
  57. 2026-09-27 14:23 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  58. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-09-27 02:40 UTCEG score recompute
  60. 2026-09-27 02:40 UTCVendor advisory
  61. 2026-09-27 02:40 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  62. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  63. 2026-09-26 15:40 UTCEG score recompute
  64. 2026-09-26 15:40 UTCVendor advisory
  65. 2026-09-26 15:39 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  67. 2026-09-25 16:43 UTCVendor advisory
  68. 2026-09-25 16:42 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  69. 2026-09-25 05:43 UTCVendor advisory
  70. 2026-09-25 05:43 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  71. 2026-09-24 18:44 UTCEG score recompute
  72. 2026-09-24 18:44 UTCVendor advisory
  73. 2026-09-24 18:44 UTCGHSA enrichmentGHSA-4pj6-ggmx-ccvm · GitHub severity HIGH · GitHub CVSS 7.8
  74. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  75. 2026-09-24 06:52 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-80591?
CVE-2026-80591 is a high-severity vulnerability; its CVE record was published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix listxattr handling of corrupted xattr entries Validate the xattr entry before reading its fields in f2fs_listxattr(). Return -EFSCORRUPTED when the entry is outside the valid xattr storage area instead of returning a…
When was the CVE record for CVE-2026-80591 published?
The CVE record for CVE-2026-80591 was published on August 28, 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 August 29, 2026; the record at its source may have been updated since.
Is CVE-2026-80591 actively exploited?
CVE-2026-80591 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-2026-80591?
CVE-2026-80591 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-2026-80591?
A fix for CVE-2026-80591 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-80591 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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