CVE-2013-5123

mediumpriority · track · 37EPSS 0.080 · 95 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

7.99% (95th) EPSS

CVSS 4.3 · medium

Is it mine?

12 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

The mirroring support (-M, --use-mirrors) in Python Pip before 1.5 uses insecure DNS querying and authenticity checks which allows attackers to perform man-in-the-middle attacks.

cvss

Technical severity, 0–10. One row per scoring source.

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-287US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-24086phlyLabs phlyMail Lite 4.03.04 - 'go' Open Redirectfunctional · exploit_db

affected products (12)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
debian debian linux= 10.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 20nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 21nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
pypa pip< 1.5nvdUScpe:2.3:a:pypa:pip:*:*:*:*:*:*:*:*
redhat openshift= 1.0nvdUScpe:2.3:a:redhat:openshift:*:*:*:*:*:*:*:*
redhat openshift= 2.0nvdUScpe:2.3:a:redhat:openshift:*:*:*:*:*:*:*:*
redhat software collectionsall versionsnvdUScpe:2.3:a:redhat:software_collections:*:*:*:*:*:*:*:*
virtualenv virtualenv= 12.0.7nvdUScpe:2.3:a:virtualenv:virtualenv:*:*:*:*:*:*:*:*
PyPI pip< 1.5osvUSpkg:pypi/pip

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-c5h8-cq4v-cvfmImproper Authentication in pip2022-05-24ghsa · osvUS
The mirroring support (-M, --use-mirrors) in Python Pip before 1.5 uses insecure DNS querying and authenticity checks which allows attackers to perform man-in-the-middle attacks.
PYSEC-2019-1602019-11-05vendor · osvUS
The mirroring support (-M, --use-mirrors) in Python Pip before 1.5 uses insecure DNS querying and authenticity checks which allows attackers to perform man-in-the-middle attacks.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2019-11-05modified 2026-06-16

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+7709 more

references (27)

External citations — patches, advisories, analysis.

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