CVE-2019-14809
net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix
02 Description
net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 8.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.7% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-08-13 20:54Z7 YR AGO
- Last updated
- 2024-08-05 00:26Z2 YR AGO
- Reserved
- 2019-08-10
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-939Improper Authorization in Handler for Custom URL SchemeBase
- Data version
- 5.1
- Document digest
- 088e6a1ff17c86ff08b943cacf8c33a31811e49631faa79bdc61538d761c2d84
05 Affected products
06 References
- groups.google.comhttps://groups.google.com/forum/#%21topic/golang-announce/0uuMm1BwpHE
- groups.google.comhttps://groups.google.com/forum/#%21topic/golang-announce/65QixT3tcmg
- github.comhttps://github.com/golang/go/issues/29098
- seclists.org20190819 [SECURITY] [DSA 4503-1] golang-1.11 security updatehttps://seclists.org/bugtraq/2019/Aug/31
- www.debian.orgDSA-4503https://www.debian.org/security/2019/dsa-4503
- lists.opensuse.orgopenSUSE-SU-2019:2000http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.html
- lists.opensuse.orgopenSUSE-SU-2019:2056http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.html
- lists.opensuse.orgopenSUSE-SU-2019:2072http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.html
- lists.fedoraproject.orgFEDORA-2019-55d101a740https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYO6E3H34C346D2E443GLXK7OK6KIYIQ/
- lists.fedoraproject.orgFEDORA-2019-65db7ad6c7https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BBP27PZGSY6OP6D26E5FW4GZKBFHNU7/
- lists.opensuse.orgopenSUSE-SU-2019:2085http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.html
- lists.opensuse.orgopenSUSE-SU-2019:2130http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00038.html
- access.redhat.comRHSA-2019:3433https://access.redhat.com/errata/RHSA-2019:3433
07 Fixed in
Arch Linux
- go Fixed in 2:1.12.8-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- golang-1.10 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- golang-1.10 No fix yet
- golang-1.6 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- golang-1.10 No fix yet
- golang-1.8 No fix yet
- golang-1.9 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.