VulnSocial

CVE-2026-53524Disclosure

LOWCVSS 6.5 · MEDIUM

Signal is active with 2 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

WeeChat (Wee Enhanced Environment for Chat) is a free chat client. In versions 4.3.0 through 4.9.0, the WeeChat relay module's WebSocket permessage-deflate decompression function relay_websocket_inflate() has no upper bound on output size. An authenticated relay user can send a small compressed WebSocket frame (~100 bytes) that decompresses to gigabytes, exhausting all server memory and crashing the entire WeeChat process. The api protocol enables permessage-deflate and requires authentication before WebSocket upgrade. Version 4.9.1 patches the issue.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-409

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-08-22: 2Technical Details · 2026-08-22: 208-22
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-53524 WeeChat (Wee Enhanced Environment for Chat) is a free chat client. In versions 4.3.0 through 4.9.0, the WeeChat relay module's WebSocket permessage-deflate decompress… https://www.cve.org/CVERecord?id=CVE-2026-53524 ----- Traducción: CVE-2026-53524 Wee… http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-53524, highlighting a WebSocket permessage‑deflate decompress issue affecting WeeChat versions 4.3.0 to 4.9.0.

    0000025
    102 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-53524 WeeChat (Wee Enhanced Environment for Chat) is a free chat client. In versions 4.3.0 through 4.9.0, the WeeChat relay module's WebSocket permessage-deflate decompress… https://www.cve.org/CVERecord?id=CVE-2026-53524

    Post summary

    The excerpt provides a brief disclosure of CVE‑2026‑53524, indicating a WebSocket permessage‑deflate decompression vulnerability in WeeChat versions 4.3.0‑4.9.0, but offers no PoC, exploit, or mitigation information.

    000001.8K
    58.0K followersView on X

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