CVE-2020-26154

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00030.htmlIssue Tracking, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.htmlIssue Tracking, Third Party Advisory
https://bugs.debian.org/968366Issue Tracking, Third Party Advisory
https://github.com/libproxy/libproxy/pull/126Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00024.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BID3HVHAF6DA3YJOFDBSAZSMR3ODNIW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZVZXTFMFTSML3J6OOCDBDYH474BRJSW/
https://www.debian.org/security/2020/dsa-4800Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00030.htmlIssue Tracking, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.htmlIssue Tracking, Third Party Advisory
https://bugs.debian.org/968366Issue Tracking, Third Party Advisory
https://github.com/libproxy/libproxy/pull/126Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00024.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BID3HVHAF6DA3YJOFDBSAZSMR3ODNIW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZVZXTFMFTSML3J6OOCDBDYH474BRJSW/
https://www.debian.org/security/2020/dsa-4800Third Party Advisory

Timeline

Published: Sep 30, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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