PT-2026-36091

Dancer::Session::Abstract versions through 1.3522 for Perl generates session ids insecurely. The session id is generated from summing the character codepoints of the absolute pathname with the process id, the epoch time and calls to the built-in rand function to return a number between 0 and...

PhpSpreadsheet has CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions

Summary The XLSX reader's ColumnAndRowAttributes::readRowAttributes method reads row numbers from XML attributes without validating them against the spreadsheet maximum row limit AddressRange::MAXROW = 1,048,576. An attacker can craft a minimal XLSX file 1.6KB containing a element that inflates...

GHSA-7C6M-4442-2X6M PhpSpreadsheet has CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions

Summary The XLSX reader's ColumnAndRowAttributes::readRowAttributes method reads row numbers from XML attributes without validating them against the spreadsheet maximum row limit AddressRange::MAXROW = 1,048,576. An attacker can craft a minimal XLSX file 1.6KB containing a element that inflates...

mm: filemap: fix nr_pages calculation overflow in filemap_map_pages()

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GHSA-HRMW-QPRP-WGMC PhpSpreadsheet has XSS via number format code with @ text placeholder bypasses htmlspecialchars in HTML writer

It was discovered that there is a way to bypass HTML escaping in the HTML writer using custom number format codes. The Problem In Writer/Html.php around line 1592, the code checks if the formatted cell data equals the original data to decide whether to apply htmlspecialchars: php if $cellData ===...

Cross-site Scripting (XSS)

Overview phpoffice/phpspreadsheet is a Spreadsheet engine that Read, Create and Write Spreadsheet documents in PHP . Affected versions of this package are vulnerable to Cross-site Scripting XSS in the HTML export process when handling custom number format codes containing the @ text placeholder. ...

PhpSpreadsheet has XSS via number format code with @ text placeholder bypasses htmlspecialchars in HTML writer

It was discovered that there is a way to bypass HTML escaping in the HTML writer using custom number format codes. The Problem In Writer/Html.php around line 1592, the code checks if the formatted cell data equals the original data to decide whether to apply htmlspecialchars: php if $cellData ===...

Cross-site Scripting (XSS)

Overview phpoffice/phpspreadsheet is a Spreadsheet engine that Read, Create and Write Spreadsheet documents in PHP . Affected versions of this package are vulnerable to Cross-site Scripting XSS in the HTML generation process when a cell uses a custom number format containing the @ text placeholde...

PhpSpreadsheet has XSS via NumberFormat @ Text Substitution in HTML Writer

Summary The HTML Writer in PhpSpreadsheet bypasses htmlspecialchars output escaping when a cell uses a custom number format containing the @ text placeholder with additional literal text e.g., @ "items" or "Total: "@. This allows an attacker to inject arbitrary HTML and JavaScript into the...

GHSA-6WPP-88CP-7Q68 PhpSpreadsheet has XSS via NumberFormat @ Text Substitution in HTML Writer

Summary The HTML Writer in PhpSpreadsheet bypasses htmlspecialchars output escaping when a cell uses a custom number format containing the @ text placeholder with additional literal text e.g., @ "items" or "Total: "@. This allows an attacker to inject arbitrary HTML and JavaScript into the...

MINI-V3JH-V359-5CW8

Bulletin has no description...

PT-2026-35931

Name of the Vulnerable Software and Affected Versions PhpSpreadsheet versions prior to 1.30.4 PhpSpreadsheet versions 2.0.0 through 2.1.15 PhpSpreadsheet versions 2.2.0 through 2.4.4 PhpSpreadsheet versions 3.3.0 through 3.10.4 PhpSpreadsheet versions 4.0.0 through 5.6.0 Description The HTML Writ...

CVE-2025-53444

creationtimestamp| type| source ---|---|--- 2026-04-27 23:32:07+00:00| seen| https://bsky.app/profile/atomicedge.bsky.social/post/3mkja4wj7rz2s...

CVE-2026-41059

A flaw was found in OAuth2 Proxy. An unauthenticated attacker can exploit a configuration-dependent authentication bypass by sending a crafted request containing a number sign in the path. This allows the OAuth2 Proxy to incorrectly match a public allowlist rule, leading to the exposure of...

JLSEC-2026-278

An issue was discovered in Rclone before 1.53.3. Due to the use of a weak random number generator, the password generator has been producing weak passwords with much less entropy than advertised. The suggested passwords depend deterministically on the time the second rclone was started. This limi...

JLSEC-2026-215 OpenSSL 1.1.1 introduced a rewritten random number generator (RNG)

OpenSSL 1.1.1 introduced a rewritten random number generator RNG. This was intended to include protection in the event of a fork system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A...

JLSEC-2026-273

Issue summary: When a delta CRL that contains a Delta CRL Indicator extension is processed a NULL pointer dereference might happen if the required CRL Number extension is missing. Impact summary: A NULL pointer dereference can trigger a crash which leads to a Denial of Service for an application...

CLSA-2026-1777297012 openssl: Fix of 3 CVEs

CVE-2026-28388: fix NULL dereference in checkdeltabase when a Delta CRL lacks the CRL Number extension - CVE-2026-28389: fix NULL dereference in dh/ecdhcmssetsharedinfo when KeyEncryptionAlgorithmIdentifier has no parameters field - CVE-2026-28390: fix NULL dereference in rsacmsdecrypt when the...

AVX2 Implementation Did Not Fully Reduce Intermediate Values

The AVX2 implementation of ML-DSA did not fully reduce intermediate inputs to the inverse NTT, which leads to a testable difference in panic behaviour of internal functions compared to the portable implementation. Impact We are not aware of inputs to the public key generation, signing or...

CVE-2026-31674

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the ip6trt module. This vulnerability occurs when processing IPv6 routing header RT match rules with an oversized address number addrnr. A local attacker could exploit this by crafting a malicious netfilter rule,...