VulnerabilityModified
CVE-2019-18860
Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi.
MEDIUM 6.1EPSS 5.50%
Does this matter?
Lower severity and a low EPSS score (5.50%). Track it; it rarely justifies an emergency change on its own.
Description
Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 5.50% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- squid-cache/squid · debian/debian linux · canonical/ubuntu linux · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.htmlMailing List, Third Party Advisory
- https://github.com/squid-cache/squid/pull/504Patch, Third Party Advisory
- https://github.com/squid-cache/squid/pull/505Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4356-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4732Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/11/04/7
- http://www.openwall.com/lists/oss-security/2025/11/05/1
- http://www.openwall.com/lists/oss-security/2025/11/05/7
- https://github.com/squid-cache/squid/pull/504Patch, Third Party Advisory
- https://github.com/squid-cache/squid/pull/505Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4356-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4732Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.