CVE-2026-22774

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (48th 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
Trending — 3 sources updated this week
7.5EG
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).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
48th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

January 15, 2026

Last Modified

July 15, 2026

Advisory Details (8)

Auto-updated Jul 2, 2026
Patch available. Sources: redhat, github_commit, github_release, github.
Red HatMentions a patch (unverified)
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22774.json
Red HatMentions a patch (unverified)

2430095 – (CVE-2026-22774) CVE-2026-22774 devalue: devalue: Denial of Service due to excessive resource consumption from untrusted input

https://bugzilla.redhat.com/show_bug.cgi?id=2430095
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-22774
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:2926
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:2144
GitHub advisoryMentions a patch (unverified)

Denial of service due to memory exhaustion in devalue.parse · Advisory · sveltejs/devalue · GitHub

https://github.com/sveltejs/devalue/security/advisories/GHSA-vw5p-8cq8-m7mv
GitHub release Patch Available

v5.6.2

Patch available: sveltejs/devalue v5.6.2

https://github.com/sveltejs/devalue/releases/tag/v5.6.2
GitHub commit Patch Available

commit e46afa64dd2b (sveltejs/devalue)

Patch available: sveltejs/devalue v5.6.2 (contains commit e46afa64dd2b)

https://github.com/sveltejs/devalue/commit/e46afa64dd2b25aa35fb905ba5d20cea63aabbf7

Vendor Advisories for CVE-2026-22774(2)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhtas/rekor-search-ui-rhel9:17707390562026-02-18redhat
redhatrhtas/rekor-search-ui-rhel9:17701074522026-02-05redhat

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
devalue—
  • 5.3.0 up to 5.6.2: fixed in 5.6.2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 30× 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 94 of 184 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. 6 repeat rows among the latest 100 are merged into the row they repeat. The 90 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  3. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-10-12 16:22 UTCEG score recompute
  6. 2026-10-11 20:03 UTCEG score recompute
  7. 2026-10-11 17:17 UTCEG score recompute
  8. 2026-10-11 14:48 UTCEG score recompute
  9. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-10-09 14:55 UTCOSV refresh
  13. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-09-29 15:21 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  22. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  23. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  24. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.6% · 48th percentile
Show 69 more
  1. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-09-19 22:20 UTCOSV refresh
  3. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  6. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  7. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  9. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  10. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  11. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  12. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  13. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  14. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  15. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  16. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  17. 2026-09-01 02:04 UTCOSV refresh
  18. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  19. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  20. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  21. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  22. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  23. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  24. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  25. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  26. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  27. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  28. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  29. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  30. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  31. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  32. 2026-08-15 01:39 UTCEG score recompute
  33. 2026-08-15 01:39 UTCVendor advisory
  34. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  35. 2026-08-14 14:05 UTCEG score recompute
  36. 2026-08-14 14:05 UTCVendor advisory
  37. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  38. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  39. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  40. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  41. 2026-08-09 19:37 UTCEG score recompute
  42. 2026-08-09 19:37 UTCVendor advisory
  43. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  44. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  45. 2026-08-08 00:28 UTCEG score recompute
  46. 2026-08-08 00:28 UTCVendor advisory
  47. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  48. 2026-08-06 05:41 UTCEG score recompute
  49. 2026-08-06 05:41 UTCVendor advisory
  50. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  51. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  52. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  53. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  54. 2026-08-02 23:17 UTCEG score recompute
  55. 2026-08-02 23:17 UTCVendor advisory
  56. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  57. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  58. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  59. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  60. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  61. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  62. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  63. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  64. 2026-07-23 09:49 UTCOSV refresh
  65. 2026-07-23 03:06 UTCEG score recompute
  66. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  67. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  68. 2026-07-20 17:08 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  69. 2026-07-19 14:31 UTCEPSS rescoreEPSS 0.6% · 43rd percentile

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-22774?
CVE-2026-22774 is a high-severity vulnerability; its CVE record was published on January 15, 2026. Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input…
When was the CVE record for CVE-2026-22774 published?
The CVE record for CVE-2026-22774 was published on January 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 July 15, 2026; the record at its source may have been updated since.
Is CVE-2026-22774 actively exploited?
CVE-2026-22774 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-22774?
CVE-2026-22774 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-22774?
A fix for CVE-2026-22774 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-22774 are linked in the Vendor Advisories panel on this page.

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