Description
The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | squid | 4.8-1 | — |
| Debian 13 | squid | 4.8-1 | — |
| Debian 12 | squid | 4.8-1 | — |
| Debian 10 | squid | 4.6-1+deb10u1 | DSA-4507-1 |
| Debian 9 | squid3 | 3.5.23-5+deb9u2 | DLA-2278-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | squid3 | 3.4.8-6+deb8u7 | DLA-1847-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | squid3 | 3.5.27-1ubuntu1.2 | USN-4059-1 |
| Ubuntu 16.04 LTS | squid3 | 3.5.12-1ubuntu7.7 | USN-4059-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | libecap +1 | 1.0.1-2.module+el8.1.0+4044+36416a77 | RHSA-2019:3476 |
| RHEL 8 | squid | 7:4.4-8.module+el8.1.0+4044+36416a77 | RHSA-2019:3476 |
| RHEL 7 | squid +2 | 7:3.5.20-15.el7 | RHSA-2020:1068 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | libecap +1 | 1.0.1-2.module_el8.6.0+2741+01592ae8 | ALSA-2019:3476 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | libecap | 1.0.1-2.module+el8.4.0+404+316a0dc5 | RLSA-2019:3476 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | squid | 4.8-5.8.1 | SUSE-SU-2019:2975-1, SUSE-SU-2019:2092-1 |
| SLES 15 | squid | 4.8-5.8.1 | SUSE-SU-2019:2975-1, SUSE-SU-2019:2092-1 |
| SLES 12 SP5 | squid | 4.9-4.3.2 | SUSE-SU-2019:3067-1 |
| SLES 12 SP4 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
| SLES 12 SP3 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
| SLES 11 SP4 | squid3 | 3.1.23-8.16.37.12.1 | SUSE-SU-2020:14460-1 |
| SLES for SAP 12 SP5 | squid | 4.9-4.3.2 | SUSE-SU-2019:3067-1 |
| SLES for SAP 12 SP4 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
| SLES for SAP 12 SP3 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
| SLES for SAP 12 SP2 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
| SUSE OpenStack Cloud Crowbar 8 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-2 |
| SUSE OpenStack Cloud 8 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
| SUSE OpenStack Cloud 7 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | squid3 | 3.1.23-8.16.37.12.1 | SUSE-SU-2020:14460-1 |
| SUSE HPE Helion OpenStack 8 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-2 |
| SUSE Enterprise Storage 5 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-2, SUSE-SU-2019:2089-1 |
| SUSE Enterprise Storage 4 | squid | 3.5.21-26.17.1 | SUSE-SU-2019:2089-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | squid | 4.16-1.5 | openSUSE-SU-2024:11403-1 |
| openSUSE Leap 15.1 | squid | 4.8-lp151.2.3.1 | openSUSE-SU-2019:2541-1, openSUSE-SU-2019:1963-1 |
| openSUSE Leap 15.0 | squid | 4.8-lp151.2.3.1 | openSUSE-SU-2019:2540-1, openSUSE-SU-2019:1963-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | squid | 4.8-r0 | — |
| Alpine v3.23 | squid | 4.8-r0 | — |
| Alpine v3.22 | squid | 4.8-r0 | — |
| Alpine v3.21 | squid | 4.8-r0 | — |
| Alpine v3.20 | squid | 4.8-r0 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | squid | 4.8-r0 | — |
| Alpine v3.18 | squid | 4.8-r0 | — |
| Alpine v3.17 | squid | 4.8-r0 | — |
| Alpine v3.16 | squid | 4.8-r0 | — |
| Alpine v3.15 | squid | 4.8-r0 | — |
| Alpine v3.14 | squid | 4.8-r0 | — |
| Alpine v3.13 | squid | 4.8-r0 | — |
| Alpine v3.12 | squid | 4.8-r0 | — |
| Alpine v3.11 | squid | 4.8-r0 | — |
| Alpine v3.10 | squid | 4.8-r0 | — |
| Alpine v3.9 | squid | 4.8-r0 | — |
| Alpine v3.8 | squid | 3.5.27-r3 | — |
| Alpine v3.7 | squid | 3.5.27-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | squid +2 | 7:3.5.20-15.amzn2.1 | ALAS2-2020-1448 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | libecap +1 | 1.0.1-2.module+el8.1.0+5405+03b963f4 | ELSA-2019-3476 |
| Oracle Linux 8 | squid | 7:4.4-8.module+el8.1.0+5405+03b963f4 | ELSA-2019-3476 |
| Oracle Linux 7 | squid +2 | 7:3.5.20-15.el7 | ELSA-2020-1068 |
Advisories 21
- ALSA-2019:3476 Moderate: squid:4 security and bug fix update AlmaLinux Security Advisories · Nov 5, 2026
- RHSA-2020:1068 Red Hat Security Advisory: squid security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-4507-1 squid - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2278-1 squid3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1847-1 squid3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-4059-1 squid, squid3 vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- RLSA-2019:3476 Moderate: squid:4 security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2019:2092-1 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1963-1 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2089-2 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11403-1 squid-4.16-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2541-1 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3067-1 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2975-1 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2540-1 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2089-1 Security update for squid SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2019:3476 Red Hat Security Advisory: squid:4 security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- SUSE-SU-2020:14460-1 Security update for squid3 SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2020-1448 Important: squid security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 1, 2020
- ELSA-2020-1068 Moderate: squid security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 6, 2020
- ELSA-2019-3476 Moderate: squid:4 security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 14, 2019
References
- https://github.com/squid-cache/squid/pull/429
- https://bugs.squid-cache.org/show_bug.cgi?id=4957
- [debian-lts-announce] 20190707 [SECURITY] [DLA 1847-1] squid3 security update mailing-list
- USN-4059-1 vendor-advisory
- USN-4059-2 vendor-advisory
- 109095 vdb-entry
- FEDORA-2019-c1e06901bc vendor-advisory
- FEDORA-2019-cb50bcc189 vendor-advisory
- openSUSE-SU-2019:1963 vendor-advisory
- DSA-4507 vendor-advisory
- 20190825 [SECURITY] [DSA 4507-1] squid security update mailing-list
- RHSA-2019:3476 vendor-advisory
- openSUSE-SU-2019:2540 vendor-advisory
- openSUSE-SU-2019:2541 vendor-advisory
- [debian-lts-announce] 20200710 [SECURITY] [DLA 2278-1] squid3 security update mailing-list