CVE-2026-84138

A Denial-of-Service (DoS) vulnerability exists in the PDF Viewer component of Firefox and Thunderbird . The vulnerability has been addressed in Firefox 155 and Thunderbird 155 . While specific root cause details are not provided in the documents, the impact is a high availability loss as indicate...

CVE-2026-84138

Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155...

CVE-2026-82398

A flaw was found in pypdf. An attacker can craft a PDF that causes long runtimes when the readuntilwhitespace function processes a stream containing a long sequence of bytes without whitespace. This occurs due to inefficient algorithmic complexity, where the function repeatedly performs immutable...

Inefficient Algorithmic Complexity

Overview pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in readuntilwhitespace in pypdf/utils.py. An attacker can trigger long runtimes by supplying a...

CVE-2026-84138: Uncontrolled Resource Consumption

Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155...

Linux Distros Unpatched Vulnerability : CVE-2026-82398

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pypdf/utils.py function...

CVE-2026-84309: Loop with Unreachable Exit Condition

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

PT-2026-84191

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 155 Thunderbird versions prior to 155 Description A denial-of-service issue exists within the PDF Viewer component. Recommendations Update Firefox to version 155. Update Thunderbird to version 155...

DEBIAN-CVE-2026-82398

pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pypdf/utils.py function readuntilwhitespace reads a stream containing a long run of bytes without whitespace. The function repeatedly performs immutable bytes...

CVE-2026-82398 pypdf: Inefficient handling of non-whitespace inputs in read_until_whitespace

pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pypdf/utils.py function readuntilwhitespace reads a stream containing a long run of bytes without whitespace. The function repeatedly performs immutable bytes...

CVE-2026-82398 pypdf: Inefficient handling of non-whitespace inputs in read_until_whitespace

pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pypdf/utils.py function readuntilwhitespace reads a stream containing a long run of bytes without whitespace. The function repeatedly performs immutable bytes...

CVE-2026-82864

pdfme pdf-lib versions before 5.5.10 contain an unbounded buffer growth vulnerability in the DecodeStream.ensureBuffer method that allows attackers to cause denial of service by supplying a crafted PDF with a FlateDecode stream containing a decompression bomb. Attackers can upload a small...

CVE-2026-82866 @pdfme/common before 5.5.10 SSRF via Unvalidated URL Fetch

@pdfme/common before 5.5.10 contains a server-side request forgery vulnerability in the getB64BasePdf function that fetches arbitrary URLs without validation when basePdf is attacker-controlled. Attackers who control the basePdf template field can force servers or clients to make requests to...

CVE-2026-82864 pdfme pdf-lib before 5.5.10 Denial of Service via Decompression Bomb

pdfme pdf-lib versions before 5.5.10 contain an unbounded buffer growth vulnerability in the DecodeStream.ensureBuffer method that allows attackers to cause denial of service by supplying a crafted PDF with a FlateDecode stream containing a decompression bomb. Attackers can upload a small...

CVE-2026-82864 pdfme pdf-lib before 5.5.10 Denial of Service via Decompression Bomb

pdfme pdf-lib versions before 5.5.10 contain an unbounded buffer growth vulnerability in the DecodeStream.ensureBuffer method that allows attackers to cause denial of service by supplying a crafted PDF with a FlateDecode stream containing a decompression bomb. Attackers can upload a small...

CVE-2026-82864

pdfme pdf-lib versions before 5.5.10 contain an unbounded buffer growth vulnerability in the DecodeStream.ensureBuffer() method. An attacker can supply a crafted PDF with a FlateDecode stream containing a decompression bomb, causing a small compressed file to decompress to hundreds of megabytes. ...

CVE-2026-82864 pdfme pdf-lib before 5.5.10 Denial of Service via Decompression Bomb

pdfme pdf-lib versions before 5.5.10 contain an unbounded buffer growth vulnerability in the DecodeStream.ensureBuffer method that allows attackers to cause denial of service by supplying a crafted PDF with a FlateDecode stream containing a decompression bomb. Attackers can upload a small...

EUVD-2026-68399

pdfme pdf-lib versions before 5.5.10 contain an unbounded buffer growth vulnerability in the DecodeStream.ensureBuffer method that allows attackers to cause denial of service by supplying a crafted PDF with a FlateDecode stream containing a decompression bomb. Attackers can upload a small...

The vulnerability of the PDFium component in Google Chrome and Microsoft Edge web browsers allows a hacker to trigger a service failure.

The vulnerability of the PDFium component in Google Chrome and Microsoft Edge browsers is related to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to cause a service failure through the use of a specially created PDF file...

The vulnerability of PDF components in Google Chrome and Microsoft Edge web browsers allows a hacker to trigger a service failure.

The vulnerability of PDF components in Google Chrome and Microsoft Edge browsers is related to the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to cause a service failure using a specially created PDF file...