VDB
GHSA-rm92-fj5q-mpj5
GHSA-rm92-fj5q-mpj5
PUBLISHED
CVSS 3.299999952316284 LOW
The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open().
Risk Scores
CVSS 3.1
3.299999952316284
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Exploit Intelligence
- rf-python3.11-dev_advisory.json (github-poc)
- 2026.xml (github-poc)
- ci.py (github-poc)
- unix-ci.py (github-poc)
Timeline
- Mar 20, 2026 CVE Published
- Apr 10, 2026 Security Advisory
- Apr 16, 2026 CVE Updated
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-4519 advisory
- https://github.com/python/cpython/issues/143930 url
- https://github.com/python/cpython/pull/143931 url
- https://github.com/python/cpython/commit/3681d47a440865aead912a054d4599087b4270dd url
- https://github.com/python/cpython/commit/43fe06b96f6a6cf5cfd5bdab20b8649374956866 url
- https://github.com/python/cpython/commit/591ed890270c5697b013bf637029fb3e6cd2d73e url
- https://github.com/python/cpython/commit/594b5a05dc9913880ac92eded440defbf32a28d1 url
- https://github.com/python/cpython/commit/82a24a4442312bdcfc4c799885e8b3e00990f02b url
- https://github.com/python/cpython/commit/89bfb8e5ed3c7caa241028f1a4eac5f6275a46a4 url
- https://github.com/python/cpython/commit/9669a912a0e329c094e992204d6bdb8787024d76 url
- https://github.com/python/cpython/commit/96fc5048605863c7b6fd6289643feb0e97edd96c url
- https://github.com/python/cpython/commit/ad4d5ba32af4d80b0dfa2ba9d8203bfb219e60a5 url
- https://github.com/python/cpython/commit/cbba6119391112aba9c5aebf7b94aea447922c48 url
- https://github.com/python/cpython/commit/cc023511238ad93ecc8796157c6f9139a2bb2932 url
- https://github.com/python/cpython/commit/ceac1efc66516ac387eef2c9a0ce671895b44f03 url
- https://mail.python.org/archives/list/security-announce@python.org/thread/AY5NDSS433JK56Q7Q5IS7B37QFZVVOUS url
- http://www.openwall.com/lists/oss-security/2026/03/20/1 url