VulnerabilityModified
CVE-2019-12387
In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.
MEDIUM 6.1EPSS 2.52%
Does this matter?
Lower severity and a low EPSS score (2.52%). Track it; it rarely justifies an emergency change on its own.
Description
In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.
- 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
- 2.52% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- twisted/twisted · fedoraproject/fedora · canonical/ubuntu linux · oracle/zfs storage appliance kit · oracle/solaris
- Source
- cve@mitre.org
EPSS 2.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.htmlBroken Link
- https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2Patch, Third Party Advisory
- https://labs.twistedmatrix.com/2019/06/twisted-1921-released.htmlExploit, Release Notes, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/
- https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.htmlExploit, Release Notes, Vendor Advisory
- https://usn.ubuntu.com/4308-1/Third Party Advisory
- https://usn.ubuntu.com/4308-2/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2020.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.htmlBroken Link
- https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2Patch, Third Party Advisory
- https://labs.twistedmatrix.com/2019/06/twisted-1921-released.htmlExploit, Release Notes, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/
- https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.htmlExploit, Release Notes, Vendor Advisory
- https://usn.ubuntu.com/4308-1/Third Party Advisory
- https://usn.ubuntu.com/4308-2/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2020.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.