CVE search · CVE-2026-6019
CVE-2026-6019
low 2.1
http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.
Details
- Status
- Modified
- Published
- Last changed
- Source
- cna@python.org
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 4.0 | low 2.1 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
cna@python.orgSecondary |
| CVSS 3.1 | medium 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- python · python
References
- https://github.com/python/cpython/commit/3c59b8b53fc75c7f9578d16fb8201ceb43e8f76cPatch
- https://github.com/python/cpython/commit/76b3923d688c0efc580658476c5f525ec8735104Patch
- https://github.com/python/cpython/commit/f795e042043dfe26c42e1971d4502c1cdc4c65b8Patch
- https://github.com/python/cpython/issues/90309ExploitIssue Tracking
- https://github.com/python/cpython/pull/148848Issue TrackingPatch
- https://mail.python.org/archives/list/security-announce@python.org/thread/IVNWGV2BBNC3RHQAFS22UP4DY56SAXX3/Mailing ListVendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html