CVE-2026-12606: Inconsistent Interpretation of HTTP Requests

Eclipse Grizzly in versions before 5.0.2, cannot properly parse the trailer section in malformed trailer header's line, which can be leveraged to perform HTTP request smuggling. Grizzly 5.0.1 supports system properties that enable the behavior that fixes the vulnerability - set...

Pillow has a PDF Parsing Trailer Infinite Loop (DoS)

ImpactAn attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. PatchesPatched version: 12.2.0.PdfParser introduced in Pillow 4.2.0 follows Prev pointers in PDF trailers to read cross-reference sections. If...

PYSEC-2026-2874 Pillow has a PDF Parsing Trailer Infinite Loop (DoS)

Impact An attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. Patches Patched version: 12.2.0. PdfParser introduced in Pillow 4.2.0 follows Prev pointers in PDF trailers to read cross-reference sections. If ...

pypdf: Possible long runtimes for wrong size values in incremental mode

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires loading a PDF with a large trailer /Size value in incremental mode. PatchesThis has been fixed in pypdf==6.10.2. WorkaroundsIf you cannot upgrade yet, consider applying the changes from PR 37...

PYSEC-2026-3007 pypdf: Possible long runtimes for wrong size values in incremental mode

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires loading a PDF with a large trailer /Size value in incremental mode. Patches This has been fixed in pypdf==6.10.2. Workarounds If you cannot upgrade yet, consider applying the changes from PR...

PT-2026-59629

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires loading a PDF with a large trailer /Size value in incremental mode. Patches This has been fixed in pypdf==6.10.2. Workarounds If you cannot upgrade yet, consider applying the changes from PR...

CVE-2026-40898

A flaw was found in quic-go, an implementation of the QUIC protocol in Go. A remote attacker can exploit this by sending specially crafted HTTP/3 trailer fields. This can cause the system to allocate excessive memory, leading to a denial-of-service DoS condition where the affected server or clien...

GO-2026-5676 HTTP/3 QPACK Trailer Expansion Memory Exhaustion in github.com/quic-go/quic-go

HTTP/3 QPACK Trailer Expansion Memory Exhaustion in github.com/quic-go/quic-go...

PYSEC-2026-1829 pypdf has possible long runtimes for missing /Root object with large /Size values

Impact An attacker who exploits this vulnerability can craft a PDF which leads to possibly long runtimes for actually invalid files. This can be achieved by omitting the /Root entry in the trailer, while using a rather large /Size value. Only the non-strict reading mode is affected. Patches This...

AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer sections

SummaryThe Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. ImpactIf a pure Python version of aiohttp is installed i.e. without the usual C extensions or AIOHTTPNOEXTENSIONS is enabled, then an attacker may be able to execute...

PYSEC-2026-1104 AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer sections

Summary The Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. Impact If a pure Python version of aiohttp is installed i.e. without the usual C extensions or AIOHTTPNOEXTENSIONS is enabled, then an attacker may be able to execu...

HTTP Request Smuggling

Overview webrick is a HTTP server toolkit that can be configured as an HTTPS server, a proxy server, and a virtual-host server. Affected versions of this package are vulnerable to HTTP Request Smuggling in the request process. An attacker can bypass request boundaries and interfere with HTTP...

DEBIAN-CVE-2026-38969

Bulletin has no description...

CVE-2026-38969

Rejected reason: DO NOT USE THIS CVE RECORD. ConsultIDs: none. Reason: This record was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none...

UBUNTU-CVE-2026-38969

Rejected reason: DO NOT USE THIS CVE RECORD. ConsultIDs: none. Reason: This record was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none...

CVE-2026-38969

ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling. NOTE: the Supplier reports that "The project README states that it is suitable for testing and development, and that its developers do not encourage its use to serve...

ruby webrick through v1.9.2 WEBrick reparses trailer

ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling...

CVE-2026-38969

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CVE-2026-38969

CVE-2026-38969 entry is rejected/not used and does not represent an active vulnerability.

CVE-2026-38969: Undefined Security Weakness

ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling. NOTE: the Supplier reports that "The project README states that it is suitable for testing and development, and that its developers do not encourage its use to serve...