CVE-2026-59203 Pillow EpsImagePlugin negative %%BeginBinary byte count causes infinite loop denial of service

Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open to seek backwards to the same directive and parse it repeatedly in an infinite...

CVE-2026-59203

Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open to seek backwards to the same directive and parse it repeatedly in an infinite...

CVE-2026-59203 Pillow EpsImagePlugin negative %%BeginBinary byte count causes infinite loop denial of service

Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open to seek backwards to the same directive and parse it repeatedly in an infinite...

CVE-2026-59203

Pillow (Python imaging library) 12.0.0–12.2.0 is affected by an issue in the EPS parser (PIL/EpsImagePlugin.py) where a negative byte count in the %%BeginBinary directive allows an EPS file to cause Image.open() to seek backwards to the same directive and repeatedly parse it, creating an infinite...

Security Bulletin: IBM® Db2® is vulnerable to a trap when compiling specially crafted statements containing subqueries could lead to a denial of service (CVE-2026-7771)

Summary IBM® Db2® is vulnerable to a trap when compiling specially crafted statements containing subqueries could lead to a denial of service. Vulnerability Details CVEID:CVE-2026-7771 DESCRIPTION: IBM Db2 is vulnerable to a trap when compiling a specially crafted statements containing subqueries...

Windows Active Directory Federation Services Denial of Service Vulnerability

Loop with unreachable exit condition 'infinite loop' in Active Directory Federation Services AD FS allows an unauthorized attacker to deny service over a network...

Azure Active Directory Denial of Service Vulnerability

Loop with unreachable exit condition 'infinite loop' in Azure Active Directory allows an unauthorized attacker to deny service over a network...

Windows Active Directory Denial of Service Vulnerability

Loop with unreachable exit condition 'infinite loop' in Windows Active Directory allows an unauthorized attacker to deny service over a network...

Active Directory Federation Server Denial of Service Vulnerability

Loop with unreachable exit condition 'infinite loop' in Active Directory Federation Services AD FS allows an unauthorized attacker to deny service over a network...

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...

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...

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...

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...