VulnSocial

CVE-2026-97689

LOWCVSS 8.9 · 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

urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.read_chunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigger is that a malicious server returns Transfer-Encoding: chunked followed by a very long run of bytes without a newline. The attack mechanism is that a malicious HTTP server sends a very long unterminated chunk-size line. The impact is that unbounded memory allocation can exhaust the client process. This issue is fixed in version 2.8.0.

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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

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 · 2026-09-30: 109-30
Referenced assets1 URL
Full discourse1 post
  • NewNormal Security@NewScanTeam

    NewNormal Security turns CVEs since the previous batch into new detections, every day. 𝗗𝗮𝗶𝗹𝘆 𝗖𝗩𝗘 𝗥𝗲𝗽𝗼𝗿𝘁 — 30 Sep 2026 𝗔𝗱𝗱𝗲𝗱 to NewScan 𝘁𝗼𝗱𝗮𝘆: 📦 Command execution via git arguments in a Node app — an attacker's command runs as the app (simple-git CVE-2026-102828, CVE-2026-102826, CVE-2026-102827) 📦 HTTP client stalled by the server it calls — hangs forever, eats memory, or skips proxy TLS checks (urllib3 CVE-2026-97689, CVE-2026-97687, CVE-2026-97688) 🖥️ Static-site generator's dev server left exposed — whole config readable, files rewritable, no login (Marmite CVE-2026-102811, CVE-2026-102810) Test your stack with NewScan — free, self-hosted: https://newnormalsecurity.com/newscan?utm_source=x&utm_medium=social&utm_campaign=daily-cve #infosec #AppSec #RCE #CSO #REDTEAM

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