VulnSocial

CVE-2026-59879Patch(immutable-js / immutable)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch immutable-js immutable systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, List#set, List#setSize, List#setIn, List#updateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 ** 30 to 2 ** 31 in setListBounds in src/List.js, causing an empty List to enter an uncatchable infinite loop, a populated List to allocate without bound until process abort, or setSize to silently wrap large values. This issue is fixed in versions 4.3.9 and 5.1.8.

immutable-js CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Exploit / PoC references
Other references
Weakness type (CWE)
CWE-190CWE-400CWE-835CWE-1284

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • immutable

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
immutable-js
Products
immutable

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-11: 1Patch / Workaround · 2026-07-11: 1Technical Details · 2026-07-11: 107-11
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH: CVE-2026-59879 (CVSS 7.5) affects Immutable.js <4.3.9 & <5.1.8. Integer overflow in List operations causes infinite loops or memory exhaustion leading to DoS. Patch immediately. #CVE #Vulnerability #PatchNow https://t.co/L246EaYBAP

    Post summary

    The tweet warns about a high‑severity vulnerability (CVE-2026‑59879) in Immutable.js versions below 4.3.9 and 5.1.8, notes an integer overflow that could lead to DoS, and urges users to apply a patch immediately.

    0000062
    71 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appimmutable-jsimmutable-node.js-

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