UEFI Firmware Parser has a stack out-of-bounds write in tiano decompressor MakeTable

uefi-firmware contains a stack out-of-bounds write vulnerability in the native tiano/EFI decompressor. in uefifirmware/compression/Tiano/Decompress.c, MakeTable does not validate that bit-length values read from the compressed bitstream are within the expected range 0..16. a crafted firmware blob...

PYSEC-2026-3393 UEFI Firmware Parser has a stack out-of-bounds write in tiano decompressor MakeTable

uefi-firmware contains a stack out-of-bounds write vulnerability in the native tiano/EFI decompressor. in uefifirmware/compression/Tiano/Decompress.c, MakeTable does not validate that bit-length values read from the compressed bitstream are within the expected range 0..16. a crafted firmware blob...

PYSEC-2026-2467 python-ecdsa: Denial of Service via improper DER length validation in crafted private keys

Summary An issue in the low-level DER parsing functions can cause unexpected exceptions to be raised from the public API functions. 1. ecdsa.der.removeoctetstring accepts truncated DER where the encoded length exceeds the available buffer. For example, an OCTET STRING that declares a length of 40...

python-ecdsa: Denial of Service via improper DER length validation in crafted private keys

SummaryAn issue in the low-level DER parsing functions can cause unexpected exceptions to be raised from the public API functions.1. ecdsa.der.removeoctetstring accepts truncated DER where the encoded length exceeds the available buffer. For example, an OCTET STRING that declares a length of 4096...

pypdf: manipulated stream length values can exhaust RAM

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. PatchesThis has been fixed in pypdf==6.8.0. WorkaroundsIf you cannot...

PYSEC-2026-3019 pypdf: manipulated stream length values can exhaust RAM

Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. Patches This has been fixed in pypdf==6.8.0. Workarounds If you canno...

Werkzeug possible resource exhaustion when parsing file data in forms

Applications using Werkzeug to parse multipart/form-data requests are vulnerable to resource exhaustion. A specially crafted form body can bypass the Request.maxformmemorysize setting.The Request.maxcontentlength setting, as well as resource limits provided by deployment software and platforms, a...

PYSEC-2026-3417 Werkzeug possible resource exhaustion when parsing file data in forms

Applications using Werkzeug to parse multipart/form-data requests are vulnerable to resource exhaustion. A specially crafted form body can bypass the Request.maxformmemorysize setting. The Request.maxcontentlength setting, as well as resource limits provided by deployment software and platforms,...

USN-8531-1 libexif vulnerabilities

It was discovered that libexif had an integer overflow in its MakerNote decoder when called with a zero-length buffer. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. CVE-2026-32775 It was discovered that libexif had an integer overflow in i...

USN-8531-1: libexif vulnerabilities

It was discovered that libexif had an integer overflow in its MakerNote decoder when called with a zero-length buffer. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. CVE-2026-32775 It was discovered that libexif had an integer overflow in i...

OpenEXR: OpenEXR: Information disclosure and denial of service via malformed EXR files

A flaw was found in OpenEXR. A remote attacker could exploit a vulnerability in the IDManifest::init function when processing specially crafted EXR files. The function attempts to reconstruct strings from a prefix-compressed representation. If a previous string exceeds 255 bytes, the subsequent...

freerdp: FreeRDP: Out-of-bounds write in planar bitmap decoder allows arbitrary code execution

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. The planar bitmap decoder contains an out-of-bounds heap write vulnerability when processing RLE planar data. A remote attacker could exploit this by providing specially crafted RLE planar data, leading to an...

K000162204: Linux kernel vulnerability CVE-2025-37789

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set action It's not safe to access nlalenovskey if the data is smaller than the netlink header. Check that the attribute is OK first...

gegl: GIMP: Arbitrary code execution via heap-based buffer overflow in HDR file parsing

A flaw was found in GIMP. This vulnerability, a heap-based buffer overflow, occurs during the parsing of HDR High Dynamic Range files due to insufficient validation of user-supplied data length. A remote attacker could exploit this by convincing a user to open a specially crafted malicious file,...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias...

CVE-2026-14683

A flaw was found in HdrHistogram. A local attacker can exploit a vulnerability in the decodeFromCompressedByteBuffer function by manipulating the lengthOfCompressedContents argument. This manipulation leads to uncontrolled memory allocation, which can result in a Denial of Service DoS condition,...

PT-2026-57875

Name of the Vulnerable Software and Affected Versions OpENer version 2.3.0 Description An issue exists when parsing incoming Common Industrial Protocol CIP network packets where the length parameter is inconsistently typed across the call stack. An upstream length calculated as an int is passed t...

PT-2026-59131

Impact dulwich.porcelain.format patchoutdir=... derives each patch filename from the commit's subject line. Prior to this fix, get summary only replaced spaces with dashes - path separators /, , parent-directory components .., and other filename-hostile characters e.g. : were preserved verbatim a...

CVE-2026-51536

In OpENer 2.3.0 commit 76b95cf when parsing incoming CIP Common Industrial Protocol network packets, the length parameter is inconsistently typed across the call stack. Specifically, an upstream length calculated as an int is passed to a downstream function that expects an EipInt16 a 16-bit signe...

CVE-2026-51536

In OpENer 2.3.0 commit 76b95cf when parsing incoming CIP Common Industrial Protocol network packets, the length parameter is inconsistently typed across the call stack. Specifically, an upstream length calculated as an int is passed to a downstream function that expects an EipInt16 a 16-bit signe...