CVE-2025-15282 Header injection via newlines in data URL mediatype

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

CVE-2025-15282

CVE-2025-15282 concerns Python’s urllib.request DataHandler, where user-controlled data URLs can inject HTTP headers due to improper parsing of data URL mediatypes. Connected sources show fixes in CPython commits addressing this header-injection surface in the urllib module, indicating the underl...

PSF-2026-2

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

CVE-2025-15282 Header injection via newlines in data URL mediatype

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

CVE-2025-15282 Header injection via newlines in data URL mediatype

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

CVE-2025-15282

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

CVE-2026-0865 wsgiref.headers.Headers allows header newline injection

User-controlled header names and values containing newlines can allow injecting HTTP headers...

HTTP Response Splitting

Overview Affected versions of this package are vulnerable to HTTP Response Splitting via the wsgiref.headers.Headers. An attacker can manipulate HTTP responses by injecting arbitrary headers through user-controlled input containing newline characters. Remediation A fix was pushed into the master...

CVE-2026-0865

User-controlled header names and values containing newlines can allow injecting HTTP headers...

CVE-2026-0865 wsgiref.headers.Headers allows header newline injection

User-controlled header names and values containing newlines can allow injecting HTTP headers...

CVE-2026-0865

User-controlled header names and values containing newlines can allow injecting HTTP headers...

PSF-2026-6

User-controlled header names and values containing newlines can allow injecting HTTP headers...

CVE-2025-11468 Folding email comments of unfoldable characters doesn't preserve parenthesis

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized...

CVE-2025-11468 Folding email comments of unfoldable characters doesn't preserve parenthesis

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized...

CVE-2025-11468 Folding email comments of unfoldable characters doesn't preserve parenthesis

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized...

PSF-2026-1

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized...

CVE-2025-11468

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized...

Improper Neutralization

Overview Affected versions of this package are vulnerable to Improper Neutralization in the email header when folding a long comment that contains only unfoldable characters. An attacker can inject headers into a message between unhandled parentheses. Remediation A fix was pushed into the master...

CVE-2025-11468

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized...

CVE-2025-11468

CVE-2025-11468 refers to a Python vulnerability where folding a long comment in an email header that contains exclusively unfoldable characters can cause the parenthesis to be lost, enabling header injection when the addresses are user-controlled. The issue is tied to Python’s email/header handli...