VulnSocial

CVE-2026-81176Disclosure

LOWCVSS 5.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. Prior to 5.9.2, devalue.parse does not reject out-of-bounds indices that are greater than or equal to values.length in src/parse.js. A specially crafted untrusted payload can make the parser alternate between array representations, producing quadratic work as the payload grows and causing denial of service in applications that parse untrusted devalue data. This issue is fixed in version 5.9.2.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-09-18); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-09-18: 1Mentions · 2026-10-01: 1Technical Details · 2026-09-18: 1Technical Details · 2026-10-01: 109-1810-01
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-09-181
Disclosure1
2026-10-011
General1
Full discourse2 posts
  • DailyCVE@dailycve
    General

    🔴 sveltejs/devalue, Repeated primitive strings cause quadratic expansion in uneval, #CVE-2026-81176 (High) -DC-Oct2026-2696 https://dailycve.com/sveltejs-devalue-repeated-primitive-strings-cause-quadratic-expansion-in-uneval-cve-2026-81176-high-dc-oct2026-2696/

    Post summary

    The text announces a new high-severity CVE for sveltejs/devalue providing specific technical details about a quadratic expansion bug, but lacks indicators of PoCs, exploits, active exploitation, or patches.

    0000036
    239 followersView on X
  • DailyCVE@dailycve
    Disclosure

    🟠 Svelte devalue, DoS via malformed input, #CVE-2026-81176 (Moderate) -DC-Sep2026-2464 https://dailycve.com/svelte-devalue-dos-via-malformed-input-cve-2026-81176-moderate-dc-sep2026-2464/

    Post summary

    The text announces CVE-2026-81176 in Svelte devalue, describing denial of service caused by malformed input. It provides limited vulnerability details but no PoC, exploit tool, active exploitation report, or remediation guidance.

    0000063
    237 followersView on X

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