Unrated severityNVD Advisory· Published Oct 17, 2025· Updated Feb 26, 2026
Squid vulnerable to information disclosure via authentication credential leakage in error handling
CVE-2025-62168
Description
Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off.
AI Insight
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Affected products
28- osv-coords26 versionspkg:rpm/almalinux/libecappkg:rpm/almalinux/libecap-develpkg:rpm/almalinux/squidpkg:rpm/opensuse/squid&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/squid&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/squid&distro=openSUSE%20Tumbleweedpkg:rpm/suse/squid&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP7pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/squid&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/squid&distro=SUSE%20Manager%20Server%20LTS%204.3
< 1.0.1-2.module_el8.6.0+2741+01592ae8+ 25 more
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 7:4.15-10.module_el8.10.0+4055+645078d8.9
- (no CPE)range: < 6.10-150600.3.14.1
- (no CPE)range: < 6.12-160000.3.1
- (no CPE)range: < 7.3-1.1
- (no CPE)range: < 4.17-150000.5.58.1
- (no CPE)range: < 4.17-150000.5.58.1
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 6.10-150600.3.14.1
- (no CPE)range: < 6.10-150600.3.14.1
- (no CPE)range: < 4.17-4.59.1
- (no CPE)range: < 4.17-150000.5.58.1
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 6.12-160000.3.1
- (no CPE)range: < 4.17-150000.5.58.1
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 6.12-160000.3.1
- (no CPE)range: < 4.17-4.59.1
- (no CPE)range: < 5.7-150400.3.38.2
- (no CPE)range: < 5.7-150400.3.38.2
- Range: < 7.2
Patches
Vulnerability mechanics
References
2- github.com/squid-cache/squid/commit/0951a0681011dfca3d78c84fd7f1e19c78a4443fmitrex_refsource_MISC
- github.com/squid-cache/squid/security/advisories/GHSA-c8cc-phh7-xmxrmitrex_refsource_CONFIRM
News mentions
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