VulnSocial

CVE-2026-103262

LOWCVSS 8.7 · HIGH

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

Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of service by sending a compressed response. Attackers can send a gzip-encoded decompression bomb that accumulates in memory without size limits, causing the application process to be killed by out-of-memory conditions.

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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

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-04: 110-04
Full discourse1 post
  • Upwind Security MDR@UpwindMDR

    🚨High - Tornado CurlAsyncHTTPClient gzip Decompression Bomb DoS (CVE-2026-103262) Tornado's tornado.curl_httpclient.CurlAsyncHTTPClient accumulates decompressed data from gzip-encoded responses without bounding output size. A remote attacker can return a crafted decompression bomb to exhaust memory and crash the process (DoS). SimpleHTTPClient is not impacted. 👉Affected: tornado < 6.5.9 | Upgrade to 6.5.9

    0000026
    308 followersView on X

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