CVE-2026-1502

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.56% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 44.5% of scored records. A rank, not a probability.

NVD base score

5.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-08-13.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-10 17:54Z4 MO AGO

Last updated

2026-08-13 00:28Z22 DAYS AGO

Reserved

2026-01-27

Assigning CNA

PSF

Record state

PUBLISHED

Severity

Medium (CVSS 5.7)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')Base

Data version

5.2

Document digest

44ff0c61bb835922ad31ef1a5c7100d1792df49ee26dd7b0e2dfdee46ae8d4d1

• github.comhttps://github.com/python/cpython/pull/146212patch
• github.comhttps://github.com/python/cpython/issues/146211issue-tracking
• mail.python.orghttps://mail.python.org/archives/list/security-announce@python.org/thread/2IVPAEQWUJBCTQZEJEVTYCIKSMQPGRZ3/vendor-advisory
• github.comhttps://github.com/python/cpython/commit/05ed7ce7ae9e17c23a04085b2539fe6d6d3cef69patch
• github.comhttps://github.com/python/cpython/commit/b1cf9016335cb637c5a425032e8274a224f4b2edpatch
• github.comhttps://github.com/python/cpython/commit/9e071c9b28c17f347f81b388a003d4eeb3c7a8ddpatch
• github.comhttps://github.com/python/cpython/commit/c00c386faa579ad71196d33408644478488e43ecpatch
• github.comhttps://github.com/python/cpython/commit/56b7100b04e44ea27989242b176beb8f016b2c53patch
• github.comhttps://github.com/python/cpython/commit/58703ec1bdd1eb075e8b01a0c427683ce594dd3epatch
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/04/11/4