CVE-2026-22774

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6%, top 56% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

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.
redhat Patch Available
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22774.json
redhat Patch Available

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
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-22774
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:2926
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:2144
github Patch Available

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 / EcosystemFixed in / PatchReleasedSource
redhatrhtas/rekor-search-ui-rhel9:sha256:1e3a46ade52215e2c78df9229f36301c94099e8397ee74ab99fb8bd504ce7aa22026-02-18redhat
redhatrhtas/rekor-search-ui-rhel9:sha256:3971738912069448174202486b61ed384153ca18af3e8430a55795a6e65eb58d2026-02-05redhat

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 rangeFixed inDependents
devalue—5.6.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 52× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-25 14:17 UTCEPSS rescore
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  8. 2026-07-23 09:49 UTCOSV refresh
  9. 2026-07-23 03:06 UTCEG score recompute
  10. 2026-07-22 14:08 UTCEPSS rescore
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  1. 2026-07-13 22:30 UTCEPSS rescore
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  44. 2026-06-17 16:43 UTCOSV refresh
  45. 2026-06-16 17:52 UTCEPSS rescore
  46. 2026-06-15 17:48 UTCEPSS rescore
  47. 2026-06-14 23:18 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-22774?
CVE-2026-22774 is a high vulnerability 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 CVE-2026-22774 disclosed?
CVE-2026-22774 was first published in the National Vulnerability Database on January 15, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-22774 actively exploited?
CVE-2026-22774 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.2% of all scored CVEs.
What is the CVSS score of CVE-2026-22774?
CVE-2026-22774 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-22774?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-22774, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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