CVE-2026-22810

HIGHNVD 7.38.2
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-05-15. NVD baseline CVSS 7.3; sources differ by 0.9.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-30806 (ENISA EUVD) · GHSA-gcmj-c9gg-9vh6 (GitHub Security Advisories)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines 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: 0.2%CVSS: 7.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions prior to 3.5.7 contain a path traversal vulnerability in the importer which allows overwriting arbitrary files on disk. The OneNote converter does not sanitize the names of embedded files before writing them to disk. As a result, it's possible for an attacker to create a malicious .one file that includes file names containing ../../, that are then interpreted as part of the target path when extracting attachments from the .one file. This issue has been patched in version 3.5.7.

CVSS v3
7.3
EG Score
8.2HIGHmedium confidence
EG Risk
53
EG Risk 53/100

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)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 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.
Automatability0% × 15%
CISA's SSVC Automatable value: no (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 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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
10th
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% 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 low, Track* at medium and Attend at high mission impact.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, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (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

May 18, 2026

Last Modified

July 24, 2026

Advisory Details (5)

Auto-updated May 19, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

Path traversal in OneNote importer allows overwriting arbitrary files · Advisory · laurent22/joplin · GitHub

https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6
Web page

Release v3.5.7 · laurent22/joplin · GitHub

https://github.com/laurent22/joplin/releases/tag/v3.5.7
Web page

Desktop: Resolves #13464: OneNote importer: Don't stop the import process when a page fails to render by personalizedrefrigerator · Pull Request #13736 · laurent22/joplin · GitHub

https://github.com/laurent22/joplin/pull/13736
Web page

Desktop: Resolves #13464: OneNote importer: Don't stop the import pro… · laurent22/joplin@7916684 · GitHub

https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c
Web page

joplin/packages/onenote-converter/renderer/src/page/embedded_file.rs at af5108d70233b1db9410346958c1587cf7c1b16d · laurent22/joplin · GitHub

https://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16d/packages/onenote-converter/renderer/src/page/embedded_file.rs#L13-L16

Vendor Advisories for CVE-2026-22810(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
npm@joplin/onenote-converter @ 3.5.7 (fixes < 3.5.7)—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)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@joplin/onenote-converter—
  • every version up to 3.5.7: fixed in 3.5.7
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 40× 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 99 of 224 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 125 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  2. 2026-11-01 07:58 UTCGHSA enrichmentGHSA-gcmj-c9gg-9vh6 · GitHub severity HIGH · GitHub CVSS 8.2
  3. 2026-11-01 07:58 UTCEG score recompute▲ 0.90
  4. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  5. 2026-10-30 21:24 UTCEG score recompute
  6. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  7. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  8. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  9. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  10. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  11. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  12. 2026-10-25 14:42 UTCEG score recompute
  13. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  14. 2026-10-24 07:18 UTCEG score recompute
  15. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  16. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  17. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  18. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  19. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  20. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-18 03:55 UTCEG score recompute
  22. 2026-10-17 17:12 UTCEG score recompute
  23. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  25. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
Show 74 more
  1. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-10-12 16:22 UTCEG score recompute
  5. 2026-10-11 20:03 UTCEG score recompute
  6. 2026-10-11 17:17 UTCEG score recompute
  7. 2026-10-11 14:48 UTCEG score recompute
  8. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  13. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  14. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  15. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  16. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  17. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-09-30 03:40 UTCOSV refresh
  19. 2026-09-29 15:21 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  22. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  23. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  25. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  26. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  27. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  28. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  29. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  30. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  31. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  32. 2026-09-11 05:53 UTCOSV refresh
  33. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  34. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  35. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  36. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  37. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  38. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  39. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  40. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  41. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  42. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  43. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  44. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  45. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  46. 2026-08-23 17:12 UTCEG score recompute
  47. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  48. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  49. 2026-08-20 19:08 UTCEG score recompute
  50. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  51. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  52. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  53. 2026-08-17 10:05 UTCEG score recompute
  54. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  55. 2026-08-16 03:38 UTCEG score recompute
  56. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  57. 2026-08-15 01:37 UTCEG score recompute
  58. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  59. 2026-08-14 02:11 UTCEG score recompute
  60. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  61. 2026-08-12 14:38 UTCEG score recompute
  62. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  63. 2026-08-11 13:56 UTCEG score recompute
  64. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  65. 2026-08-11 00:41 UTCEG score recompute
  66. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  67. 2026-08-10 01:05 UTCEG score recompute
  68. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  69. 2026-08-09 01:39 UTCEG score recompute
  70. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  71. 2026-08-07 20:19 UTCEG score recompute
  72. 2026-08-06 20:51 UTCEG score recompute
  73. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  74. 2026-08-05 21:24 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-22810?
CVE-2026-22810 is a high-severity vulnerability; its CVE record was published on May 18, 2026. Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions prior to 3.5.7 contain a path traversal vulnerability in the importer which allows overwriting arbitrary files on disk. The OneNote converter does not sanitize the names of embedded…
When was the CVE record for CVE-2026-22810 published?
The CVE record for CVE-2026-22810 was published on May 18, 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 July 24, 2026; the record at its source may have been updated since.
Is CVE-2026-22810 actively exploited?
CVE-2026-22810 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-22810?
CVE-2026-22810 has a CVSS v3 base score of 7.3 (NVD). EchelonGraph synthesises NVD + FIRST EPSS + GHSA into a combined EG score of 8.2 (HIGH).
How do I remediate CVE-2026-22810?
A fix for CVE-2026-22810 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-22810 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-22810

Explore →

Is Your Infrastructure Affected by CVE-2026-22810?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.