PT-2026-58210

Name of the Vulnerable Software and Affected Versions Azure Active Directory versions prior to 8.19.2 Description An infinite loop occurs when an unreachable exit condition is triggered, allowing an unauthorized attacker to remotely cause a denial of service over a network. Recommendations Update...

PYSEC-2026-3018 pypdf: Possible infinite loop when processing threads/articles in writer

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with threads/articles into a writer. Patches This has been fixed in pypdf==6.13.1. Workarounds If users cannot upgrade yet, consider applying the changes from PR 3839...

PYSEC-2026-3035 Python Liquid: Infinite loop when parsing malformed `{% case %}` tags

Impact Given a malformed % case % tag without associated % when % or % else % block, and no terminating % endcase % tag, Python Liquid hangs in an infinite loop at parse time. This allows malicious template authors to craft templates for a denial of service attack. Patches The issue is fixed in...

PYSEC-2026-3009 pypdf: Possible infinite loop when retrieving fonts for layout-mode text extraction

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode. Patches This has been fixed in pypdf==6.13.0. Workarounds If you cannot upgrade yet, consider applying the changes from PR 3830...

PYSEC-2026-3022 pypdf: Possible infinite loop when processing outlines/bookmarks in writer

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with outlines into a writer. Patches This has been fixed in pypdf==6.13.0. Workarounds If you cannot upgrade yet, consider applying the changes from PR 3830...

PYSEC-2026-3080 OpenStack Swift: s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body

In OpenStack Swift before 2.36.2 and 2.37.2, s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body. The StreamingInput class repeatedly appends an empty buffer and re-reads, causing the proxy-server worker handling the request to become permanently...

PYSEC-2026-2524 OpenStack Ironic: Pre-Validation Checksum Calculation allows Denial of Service (DoS) via Infinite Block Devices

In OpenStack Ironic through 35.x before a3f6d73, during image handling, an infinite loop in checksum calculations can occur via the file:///dev/zero URL...

OpenStack Ironic: Pre-Validation Checksum Calculation allows Denial of Service (DoS) via Infinite Block Devices

In OpenStack Ironic through 35.x before a3f6d73, during image handling, an infinite loop in checksum calculations can occur via the file:///dev/zero URL...

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-2026-3012 pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. Patches This has been fixed in pypdf==6.9.2. Workarounds If users cannot upgrade yet, consider applying the changes from PR 3693...

PYSEC-2026-3005 pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. Patches This has been fixed in pypdf==6.7.2. Workarounds If users cannot upgrade yet, consider applying the changes from PR 3655...

PYSEC-2026-3013 pypdf has a possible infinite loop when processing TreeObject

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. Patches This has been fixed in pypdf==6.7.1. Workarounds If you cannot upgrade yet, consider applying the changes...

PYSEC-2026-3008 pypdf and PyPDF2 possible Infinite Loop when a comment isn't followed by a character

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if parsecontentstream is executed. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case if the...

PT-2026-59644

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with outlines into a writer. Patches This has been fixed in pypdf==6.13.0. Workarounds If you cannot upgrade yet, consider applying the changes from PR 3830...

CVE-2026-59935

A flaw was found in pypdf, a pure-python PDF library. A remote attacker can craft a malicious PDF file containing an unterminated inline image within the page content stream. When this crafted PDF is parsed, it can lead to an infinite loop, resulting in a denial of service DoS due to resource...

SUSE-SU-2026:22620-1 Security update for ImageMagick

This update for ImageMagick fixes the following issues - CVE-2026-53466: integer overflow in the XCF decoder can result in an out-of-bounds read when a crafted image is read bsc1270073. - CVE-2026-53467: allocated memory left unchanged in the MNG decoder can lead to a heap information disclosure...

Loop with Unreachable Exit Condition in GNU patch

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SUSE CVE-2026-56289

GNU patch is vulnerable to a denial of service DoS due to improper validation of hunk single block of changes in diff line offsets in unified-diff input. A specially crafted patch can specify an extremely large line number, causing the application to enter an effectively infinite processing loop...

SUSE CVE-2026-59936

pypdf is a free and open-source pure-python PDF library. Prior to 6.14.1, an attacker can craft a PDF with a page content stream containing a not terminated inline image, causing an infinite loop during inline image end marker detection such as when extracting page text. This issue is fixed in...

EulerOS 2.0 SP12 : expat (EulerOS-SA-2026-2586)

According to the versions of the expat packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : libexpat before 2.7.5 allows an infinite loop while parsing DTD content.CVE-2026-32777 libexpat before 2.7.5 allows a NULL pointer dereference with...