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Squid3: Request Smuggling in HTTP Transfer-Encoding (CVE-2026-61642)

0
Medium
VulnerabilityCVE-2026-61642gcveosvubuntu-cve-2026-61642cve-2026-61642ubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-22-04-ltsubuntu-24-04-ltsubuntu-26-04-lts
Published: 09/17/2026 (09/17/2026, 00:00:00 UTC)
Source: GCVE Database
Product: squid3

Description

Request Smuggling in HTTP Transfer-Encoding

Affected software

Ubuntu:Pro:16.04:LTSmore threats →ghsa
squid3
pkg:deb/ubuntu/squid3?arch=source&distro=esm-infra/xenial
Affected versions
=3.3.8-1ubuntu16=3.3.8-1ubuntu17=3.5.12-1ubuntu6=3.5.12-1ubuntu7=3.5.12-1ubuntu7.1=3.5.12-1ubuntu7.2=3.5.12-1ubuntu7.3=3.5.12-1ubuntu7.4=3.5.12-1ubuntu7.5=3.5.12-1ubuntu7.6=3.5.12-1ubuntu7.7=3.5.12-1ubuntu7.8=3.5.12-1ubuntu7.9=3.5.12-1ubuntu7.10=3.5.12-1ubuntu7.11=3.5.12-1ubuntu7.12=3.5.12-1ubuntu7.13=3.5.12-1ubuntu7.14=3.5.12-1ubuntu7.15=3.5.12-1ubuntu7.16=3.5.12-1ubuntu7.16+esm1=3.5.12-1ubuntu7.16+esm2=3.5.12-1ubuntu7.16+esm3=3.5.12-1ubuntu7.16+esm4=3.5.12-1ubuntu7.16+esm5=3.5.12-1ubuntu7.16+esm6
Ubuntu:Pro:18.04:LTSmore threats →ghsa
squid3
pkg:deb/ubuntu/squid3?arch=source&distro=esm-infra/bionic
Affected versions
=3.5.23-5ubuntu1=3.5.23-5ubuntu2=3.5.27-1ubuntu1=3.5.27-1ubuntu1.1=3.5.27-1ubuntu1.2=3.5.27-1ubuntu1.3=3.5.27-1ubuntu1.4=3.5.27-1ubuntu1.5=3.5.27-1ubuntu1.6=3.5.27-1ubuntu1.7=3.5.27-1ubuntu1.8=3.5.27-1ubuntu1.9=3.5.27-1ubuntu1.10=3.5.27-1ubuntu1.11=3.5.27-1ubuntu1.12=3.5.27-1ubuntu1.13=3.5.27-1ubuntu1.14=3.5.27-1ubuntu1.14+esm1=3.5.27-1ubuntu1.14+esm2=3.5.27-1ubuntu1.14+esm3=3.5.27-1ubuntu1.14+esm4=3.5.27-1ubuntu1.14+esm5
Ubuntu:Pro:20.04:LTSmore threats →ghsa
squid
pkg:deb/ubuntu/squid?arch=source&distro=esm-infra/focal
Affected versions
=4.8-1ubuntu2=4.8-1ubuntu3=4.9-2ubuntu1=4.9-2ubuntu2=4.9-2ubuntu3=4.9-2ubuntu4=4.10-1ubuntu1=4.10-1ubuntu1.1=4.10-1ubuntu1.2=4.10-1ubuntu1.3=4.10-1ubuntu1.4=4.10-1ubuntu1.5=4.10-1ubuntu1.6=4.10-1ubuntu1.7=4.10-1ubuntu1.8=4.10-1ubuntu1.9=4.10-1ubuntu1.10=4.10-1ubuntu1.11=4.10-1ubuntu1.12=4.10-1ubuntu1.13=4.10-1ubuntu1.13+esm1=4.10-1ubuntu1.13+esm2
Ubuntu:22.04:LTSmore threats →ghsa
squid
pkg:deb/ubuntu/squid?arch=source&distro=jammy
Affected versions
=4.13-10ubuntu5=5.2-1ubuntu1=5.2-1ubuntu3=5.2-1ubuntu4=5.2-1ubuntu4.1=5.2-1ubuntu4.2=5.2-1ubuntu4.3=5.7-0ubuntu0.22.04.1=5.7-0ubuntu0.22.04.2=5.7-0ubuntu0.22.04.3=5.7-0ubuntu0.22.04.4=5.9-0ubuntu0.22.04.1=5.9-0ubuntu0.22.04.2=5.9-0ubuntu0.22.04.3=5.9-0ubuntu0.22.04.4=5.9-0ubuntu0.22.04.5=5.9-0ubuntu0.22.04.7
Ubuntu:24.04:LTSmore threats →ghsa
squid
pkg:deb/ubuntu/squid?arch=source&distro=noble
Affected versions
=6.1-2ubuntu1=6.1-2ubuntu2=6.5-1ubuntu1=6.5-1ubuntu2=6.5-1ubuntu3=6.6-1ubuntu4=6.6-1ubuntu5=6.6-1ubuntu5.1=6.10-0ubuntu0.24.04.1=6.13-0ubuntu0.24.04.1=6.13-0ubuntu0.24.04.2=6.13-0ubuntu0.24.04.3=6.14-0ubuntu0.24.04.1=6.14-0ubuntu0.24.04.2=6.14-0ubuntu0.24.04.4
Ubuntu:26.04:LTSmore threats →ghsa
squid
pkg:deb/ubuntu/squid?arch=source&distro=resolute
Affected versions
=6.13-1ubuntu4=6.13-1ubuntu5=7.2-2ubuntu1=7.2-2ubuntu2=7.2-2ubuntu2.2

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-61642
Osv Schema Version
1.7.0
Ecosystems
["Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]

Threat ID: 6aade4ed55bf5e2cf5ed9f55

Added to database: 09/19/2026, 01:27:09 UTC

Last updated: 09/19/2026, 01:27:09 UTC

Views: 1

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