CVE-2019-10160 — A security regression of CVE-2019-9636 was discovered in python since commit d53

A security regression of CVE-2019-9636 was discovered in python since commit d537ab0ff9767ef024f26246899728f0116b1ec3 affecting versions 2.7, 3.5, 3.6, 3.7 and from v3.8.0a4 through v3.8.0b1, which still allows an attacker to exploit CVE-2019-9636 by abusing the user and password

01What is this vulnerability?

A security regression of CVE-2019-9636 was discovered in python since commit d537ab0ff9767ef024f26246899728f0116b1ec3 affecting versions 2.7, 3.5, 3.6, 3.7 and from v3.8.0a4 through v3.8.0b1, which still allows an attacker to exploit CVE-2019-9636 by abusing the user and password parts of a URL. When an application parses user-supplied URLs to store cookies, authentication credentials, or other…

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2019-06-07T18:29:00.280
• Last modified: 2026-10-14T07:16:44.770

09References

• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00042.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:1587
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:1700
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:2437
• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10160
• github.com — https://github.com/python/cpython/commit/250b62acc59921d399f0db47db3b462cd6037e0…
• github.com — https://github.com/python/cpython/commit/8d0ef0b5edeae52960c7ed05ae8a12388324f87…
• github.com — https://github.com/python/cpython/commit/f61599b050c621386a3fc6bc480359e2d3bb93d…
• github.com — https://github.com/python/cpython/commit/fd1771dbdd28709716bd531580c40ae5ed81446…