Loop with Unreachable Exit Condition ('Infinite Loop') Affecting curl package, versions <0:8.21.0-0.1.hum1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.58% (45th percentile)

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  • Snyk IDSNYK-RHEL10-CURL-17874016
  • published7 Jul 2026
  • disclosed3 Jul 2026

Introduced: 3 Jul 2026

CVE-2026-11352  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:10 curl to version 0:8.21.0-0.1.hum1 or higher.
This issue was patched in RHSA-2026:29017.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.

CVSS Base Scores

version 3.1