In Python (aka CPython) up to 3.10.8, the mailcap module does not add escape characters into commands discovered in the system mailcap file. This may allow attackers to inject shell commands into applications that call mailcap.findmatch with untrusted input (if they lack validation of user-provided filenames or arguments). The fix is also back-ported to 3.7, 3.8, 3.9
References
Link Providers
https://bugs.python.org/issue24778 cve-icon cve-icon
https://github.com/python/cpython/issues/68966 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46KWPTI72SSEOF53DOYQBQOCN4QQB2GE/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/53TQZFLS6O3FLIMVSXFEEPZSWLDZLBOX/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/57NECACX333A3BBZM2TR2VZ4ZE3UG3SN/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DBVY4YC2P6EPZZ2DROOXHDOWZ4BJFLW/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QIKVSW3H6W2GQGDE5DTIWLGFNH6KKEW/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AKGMYDVKI3XNM27B6I6RQ6QV3TVJAUCG/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ERYMM2QVDPOJLX4LYXWYIQN5FOIJLDRY/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F3LNY2NHM6J22O6Q5ANOE3SZRK3OACKR/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCIO2W4DUVVMI6L52QCC4TT2B3K5VWHS/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FIRUTX47BJD2HYJDLMI7JJBVCYFAPKAQ/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GPCLGZZJPVXFWUWVV5WCD5FNUAFLKBDN/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HAI2GBC7WKH7J5NH6J2IW5RT3VF2SF5M/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFGV7P2PYFBMK32OKHCAC2ZPJQV5AUDF/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KAY6VBNVEFUXKJF37WFHYXUSRDEK34N3/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYG3EMFR7ZHC46TDNM7SNWO64A3W7EUF/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ONXSGLASNLGFL57YU6WT6Y5YURSFV43U/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTTZGLD2YBMMG6U6F5HOTPOGGPBIURMA/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIOJUZ5JMEMGSKNISTOVI4PDP36FDL5Y/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5664BGZVTA46LQDNTYX5THG6CN4FYJX/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXF6MQ74HVIDDSR5AE2UDR24I6D4FEPC/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO2H6CKWLRGTTZCGUQVELW6LUH437Q3O/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y4E2WBEJ42CGLGDHD6ZXOLZ2W6G3YOVD/ cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2015-20107 cve-icon
https://python-security.readthedocs.io/vuln/mailcap-shell-injection.html cve-icon cve-icon cve-icon
https://security.gentoo.org/glsa/202305-02 cve-icon cve-icon
https://security.netapp.com/advisory/ntap-20220616-0001/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2015-20107 cve-icon
History

Mon, 03 Nov 2025 22:30:00 +0000

Type Values Removed Values Added
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-04-13T00:00:00.000Z

Updated: 2025-11-03T21:43:59.756Z

Reserved: 2022-04-13T00:00:00.000Z

Link: CVE-2015-20107

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-04-13T16:15:08.937

Modified: 2025-11-03T22:15:43.133

Link: CVE-2015-20107

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-08-02T00:00:00Z

Links: CVE-2015-20107 - Bugzilla