pyasn1: python-pyasn1: pyasn1: Denial of Service via crafted ASN.1 OBJECT IDENTIFIER

A flaw was found in pyasn1, a Python library for Abstract Syntax Notation One ASN.1. The BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs. A remote attacker could exploit this by providing a specially crafted payload...

Linux Distros Unpatched Vulnerability : CVE-2026-67288

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in...

CVE-2026-55497

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, the built-in thumbnail and avatar image decoders limit compressed file size but do not limit decoded pixel dimensions, allowing an authenticated user to submit a small PNG, JPEG, or GIF that triggers an unbounded...

EUVD-2026-51392

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, the built-in thumbnail and avatar image decoders limit compressed file size but do not limit decoded pixel dimensions, allowing an authenticated user to submit a small PNG, JPEG, or GIF that triggers an unbounded...

GO-2026-5046 CPU exhaustion in Avro decoder in github.com/iskorotkov/avro/v2 and github.com/hamba/avro/v2

The Avro array and map decoders loop over an attacker-controlled block-count value without checking the underlying reader's error state inside the loop body. Reader.ReadBlockHeader returns the count as a Go int, which is 64-bit on amd64 and arm64 targets. A producer can declare a block of up to...

Cloudreve: Denial of Service - Image decompression / pixel bomb in thumbnail & avatar decoding crashes the server

Summary Cloudreve's built-in image processor decodes user-supplied images with Go's standard-library decoders image/png, image/jpeg, image/gif and guards only the compressed file size — never the decoded pixel dimensions. Go's decoders allocate a pixel buffer sized bytesPerPixel × width × height...

PT-2026-64433

Name of the Vulnerable Software and Affected Versions Cloudreve versions prior to 4.17.0 Description Cloudreve contains an issue where the built-in image decoders for PNG, JPEG, and GIF formats limit only the compressed file size but do not restrict the decoded pixel dimensions. An authenticated...

pyasn1: Uncontrolled resource consumption when converting decoded REAL values

Impact The univ.Real type converted its mantissa, base, exponent value to a Python float using exact big-integer exponentiation. A BER/CER/DER-encoded REAL value only a few bytes long can carry a very large exponent, causing this computation to attempt to materialize an astronomically large...

GHSA-8PPF-4F7H-5PPJ pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service

Impact The BER/CER/DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs. A small crafted payload tens of kilobytes containing an OID with many arcs consumes seconds of CPU per decode call, allowing denial of service in any application tha...

CVE-2026-59885 pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode call and c...

CVE-2026-59885

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode call and c...

PYSEC-2026-1615 Synapse can be forced to thumbnail unexpected file formats, invoking external, potentially untrustworthy decoders

Impact In Synapse versions before 1.120.1, enabling the dynamicthumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoking external tools like Ghostscript for processing. This significantly expands...

MAL-2026-6476 Malicious code in typedecode (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 593662d3b4cda901642b713f419417807a33f3dca74e818f66e8d0cf9ebcf6e3 On require'typedecode' / import 'typedecode', the bundled dist/index.cjs and dist/index.js execute an obfuscated import-time payload. A bootstrap.js...

[SECURITY] Fedora 44 Update: perl-Protocol-HTTP2-1.13-1.fc44

Protocol::HTTP2 is Perl HTTP/2 protocol implementation RFC 7540 with stateful decoders/encoders of HTTP/2 frames. You may use this module to implement your own HTTP/2 client/server/intermediate on top of your favorite event loop over plain or TLS socket...

[SECURITY] Fedora 43 Update: perl-Protocol-HTTP2-1.13-1.fc43

Protocol::HTTP2 is Perl HTTP/2 protocol implementation RFC 7540 with stateful decoders/encoders of HTTP/2 frames. You may use this module to implement your own HTTP/2 client/server/intermediate on top of your favorite event loop over plain or TLS socket...

CVE-2026-34180

Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap buffer over-read on 64-bit Unix and Unix-like platforms. Impact summary: The heap buffer over-read may crash the application Denial of Service or to...

freerdp security update

An update is available for freerdp. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list FreeRDP is a free implementation of the Remote Desktop Protocol RDP, release...

[SECURITY] Fedora 43 Update: perl-Sereal-5.005-1.fc43

Sereal is an efficient, compact-output, binary and feature-rich serialization protocol. The Perl encoder is implemented as the Sereal::Encoder module, the Perl decoder correspondingly as Sereal::Decoder. This Sereal module is a very thin wrapper around both Sereal::Encoder and Sereal::Decoder. It...

RLSA-2026:19358 Moderate: freerdp security update

FreeRDP is a free implementation of the Remote Desktop Protocol RDP, released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox. Security Fixes: freerdp: FreeRDP: Denial of service due to use-after-free vulnerability...

DICOM, Pydicom, GDCM, and Orthanc: A technical tour of what really happens in the heap

Over the last decade, DICOM parsing has become an active research topic. The reason is simple: DICOM is both critical and complicated. Hospitals rely on DICOM-based PACS systems, and those systems often automatically ingest files received over the network. That means malformed data could directly...