VulnSocial

CVE-2026-110685

LOWCVSS 9.1 · CRITICAL

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

Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded arguments of a tagged value when its THAW method dies in decode_tag. With allow_tags, a tagged value's class name and argument array are decoded and passed to the class's THAW method. Both are released only after THAW returns, so a THAW that dies leaves the whole decoded argument structure allocated. Each rejected document leaks data of a size the sender chooses, so a process that catches the error and keeps running exhausts its memory.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-401

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-29: 110-29
Referenced assets1 URL
By indicator
Full discourse1 post
  • cve.now@cvedotnow

    🔴 Cpanel-JSON-XS: memory leak in decode_tag enables denial of service (CVE-2026-110685) An attacker can send crafted documents that leak memory on each rejection, eventually exhausting a process's memory. Disclosed Oct 19 Patch → 4.80 https://cve.now/CVE-2026-110685

    00000476
    8.2K followersView on X

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