CVE-2025-62168
Squid vulnerable to information disclosure via authentication credential leakage in error handling
CVE-2025-62168 is fixed in 11 products on 1 platform, first by RHSA-2025:21065, released October 17, 2025. It is not reported as exploited. Patch Radar priority: Urgent.
Urgent
CVSS
10.0
Critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.6482
99th percentile
Squid is a caching proxy for the Web. In Squid versions prior to 7.2, afailure to redact HTTP authentication credentials in error handling allowsinformation disclosure. The vulnerability allows a script to bypass browsersecurity protections and learn the credentials a trusted client uses toauthenticate. This potentially allows a remote client to identify securitytokens or credentials used internally by a web application using Squid forbackend load balancing. These attacks do not require Squid to be configuredwith HTTP authentication. The vulnerability is fixed in version 7.2. As aworkaround, disable debug information in administrator mailto linksgenerated by Squid by configuring squid.conf with email_err_data off.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libecap · RHEL 8 | 0:1.0.1-2.module+el8.9.0+19703+a1da7223 | RHSA-2025:19107 | Oct 27, 2025 |
| libecap · almalinux 8 | 1.0.1-2.module_el8.6.0+2741+01592ae8 | ALSA-2025:19107 | Oct 27, 2025 |
| libecap · ol 8 | 0:1.0.1-2.module+el8.9.0+90083+f7556140 | ELSA-2025-19107 | Oct 27, 2025 |
| libecap · rocky 8 | 0:1.0.1-2.module+el8.9.0+1437+df5ea8f0 | RLSA-2025:19107 | Jan 15, 2026 |
| libecap-devel · RHEL 8 | 0:1.0.1-2.module+el8.9.0+19703+a1da7223 | RHSA-2025:19107 | Oct 27, 2025 |
| libecap-devel · almalinux 8 | 1.0.1-2.module_el8.6.0+2741+01592ae8 | ALSA-2025:19107 | Oct 27, 2025 |
| libecap-devel · ol 8 | 0:1.0.1-2.module+el8.9.0+90083+f7556140 | ELSA-2025-19107 | Oct 27, 2025 |
| squid · Debian 12.15 (bookworm) | 5.7-2+deb12u4 | DSA-6047-1 | Oct 30, 2025 |
| squid · Debian 13.5 (trixie) | 6.13-2+deb13u1 | DSA-6047-1 | Oct 30, 2025 |
| squid · Debian 14 | 7.2-1 | DEBIAN-CVE-2025-62168 | Oct 17, 2025 |
| squid · RHEL 10 | 6.10-5.el10_0.1 | RHSA-2025:21065 | Oct 17, 2025 |
| squid · RHEL 8 | 7:4.15-10.module+el8.10.0+23592+d564ec65.9 | RHSA-2025:19107 | Oct 27, 2025 |
| squid · RHEL 9 | 7:5.5-22.el9_7.1 | RHSA-2025:20935 | Nov 11, 2025 |
| squid · Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm4 | squid 3.5.27-1ubuntu1.14+esm4 | Oct 20, 2025 |
| squid · Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm1 | squid 4.10-1ubuntu1.13+esm1 | Oct 20, 2025 |
| squid · Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.4 | squid 5.9-0ubuntu0.22.04.4 | Oct 20, 2025 |
| squid · Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.3 | squid 6.13-0ubuntu0.24.04.3 | Oct 20, 2025 |
| squid · Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.2 | squid 6.13-1ubuntu1.2 | Oct 21, 2025 |
| squid · Ubuntu 25.10 (questing) | 6.13-1ubuntu4.1 | squid 6.13-1ubuntu4.1 | Oct 20, 2025 |
| squid · almalinux 10 | 7:6.10-6.el10_1.1 | ALSA-2025:21002 | Nov 11, 2025 |
| squid · almalinux 8 | 7:4.15-10.module_el8.10.0+4055+645078d8.9 | ALSA-2025:19107 | Oct 27, 2025 |
| squid · almalinux 9 | 7:5.5-22.el9_7.1 | ALSA-2025:20935 | Nov 11, 2025 |
| squid · amzn 2023 | 7:6.13-1.amzn2023.0.3 | ALAS2023-2025-1238 | Oct 27, 2025 |
| squid · ol 10 | 7:6.10-6.el10_1.1 | ELSA-2025-21002 | Dec 2, 2025 |
| squid · ol 8 | 7:4.15-10.module+el8.10.0+90691+00cd6d19.9 | ELSA-2025-19107 | Oct 27, 2025 |
| squid · ol 9 | 7:5.5-22.el9_7.1 | ELSA-2025-20935 | Nov 25, 2025 |
| squid · opensuse-leap 15.6 | 6.10-150600.3.14.1 | SUSE-SU-2025:4026-1 | Nov 10, 2025 |
| squid · opensuse-leap 16.0 | 6.12-160000.3.1 | OPENSUSE-SU-2026:20027-1 | Jan 14, 2026 |
| squid · rocky 10 | 7:6.10-6.el10_1.1 | RLSA-2025:21002 | Nov 21, 2025 |
| squid · rocky 8 | 7:4.15-10.module+el8.10.0+2080+49064dbd.9 | RLSA-2025:19107 | Jan 15, 2026 |
| squid · rocky 9 | 7:5.5-22.el9_7.1 | RLSA-2025:20935 | Nov 21, 2025 |
| squid · sles 15.6 | 6.10-150600.3.14.1 | SUSE-SU-2025:4026-1 | Nov 10, 2025 |
| squid · sles 15.7 | 6.10-150600.3.14.1 | SUSE-SU-2025:4026-1 | Nov 10, 2025 |
| squid · sles 16.0 | 6.12-160000.3.1 | SUSE-SU-2026:20078-1 | Jan 14, 2026 |
| squid-cgi · Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm4 | squid-cgi 3.5.27-1ubuntu1.14+esm4 | Oct 20, 2025 |
| squid-cgi · Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm1 | squid-cgi 4.10-1ubuntu1.13+esm1 | Oct 20, 2025 |
| squid-cgi · Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.4 | squid-cgi 5.9-0ubuntu0.22.04.4 | Oct 20, 2025 |
| squid-cgi · Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.3 | squid-cgi 6.13-0ubuntu0.24.04.3 | Oct 20, 2025 |
| squid-cgi · Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.2 | squid-cgi 6.13-1ubuntu1.2 | Oct 21, 2025 |
| squid-cgi · Ubuntu 25.10 (questing) | 6.13-1ubuntu4.1 | squid-cgi 6.13-1ubuntu4.1 | Oct 20, 2025 |
| squid-common · Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm4 | squid-common 3.5.27-1ubuntu1.14+esm4 | Oct 20, 2025 |
| squid-common · Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm1 | squid-common 4.10-1ubuntu1.13+esm1 | Oct 20, 2025 |
| squid-common · Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.4 | squid-common 5.9-0ubuntu0.22.04.4 | Oct 20, 2025 |
| squid-common · Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.3 | squid-common 6.13-0ubuntu0.24.04.3 | Oct 20, 2025 |
| squid-common · Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.2 | squid-common 6.13-1ubuntu1.2 | Oct 21, 2025 |
| squid-common · Ubuntu 25.10 (questing) | 6.13-1ubuntu4.1 | squid-common 6.13-1ubuntu4.1 | Oct 20, 2025 |
| squid-debuginfo · amzn 2023 | 7:6.13-1.amzn2023.0.3 | ALAS2023-2025-1238 | Oct 27, 2025 |
| squid-debugsource · amzn 2023 | 7:6.13-1.amzn2023.0.3 | ALAS2023-2025-1238 | Oct 27, 2025 |
| squid-openssl · Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.4 | squid-openssl 5.9-0ubuntu0.22.04.4 | Oct 20, 2025 |
| squid-openssl · Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.3 | squid-openssl 6.13-0ubuntu0.24.04.3 | Oct 20, 2025 |
| squid-openssl · Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.2 | squid-openssl 6.13-1ubuntu1.2 | Oct 21, 2025 |
| squid-openssl · Ubuntu 25.10 (questing) | 6.13-1ubuntu4.1 | squid-openssl 6.13-1ubuntu4.1 | Oct 20, 2025 |
| squid-purge · Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm4 | squid-purge 3.5.27-1ubuntu1.14+esm4 | Oct 20, 2025 |
| squid-purge · Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm1 | squid-purge 4.10-1ubuntu1.13+esm1 | Oct 20, 2025 |
| squid-purge · Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.4 | squid-purge 5.9-0ubuntu0.22.04.4 | Oct 20, 2025 |
| squid-purge · Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.3 | squid-purge 6.13-0ubuntu0.24.04.3 | Oct 20, 2025 |
| squid-purge · Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.2 | squid-purge 6.13-1ubuntu1.2 | Oct 21, 2025 |
| squid-purge · Ubuntu 25.10 (questing) | 6.13-1ubuntu4.1 | squid-purge 6.13-1ubuntu4.1 | Oct 20, 2025 |
| squid3 · Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm4 | squid3 3.5.27-1ubuntu1.14+esm4 | Oct 20, 2025 |
| squidclient · Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm4 | squidclient 3.5.27-1ubuntu1.14+esm4 | Oct 20, 2025 |
| squidclient · Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm1 | squidclient 4.10-1ubuntu1.13+esm1 | Oct 20, 2025 |
| squidclient · Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.4 | squidclient 5.9-0ubuntu0.22.04.4 | Oct 20, 2025 |
| squidclient · Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.3 | squidclient 6.13-0ubuntu0.24.04.3 | Oct 20, 2025 |
| squidclient · Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.2 | squidclient 6.13-1ubuntu1.2 | Oct 21, 2025 |
| squidclient · Ubuntu 25.10 (questing) | 6.13-1ubuntu4.1 | squidclient 6.13-1ubuntu4.1 | Oct 20, 2025 |
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