Security Bulletin: IBM InfoSphere Optim Archive Viewer is affected by a signature verification bypass vulnerability in joserfc (CVE-2026-49852)

Summary An authentication and signature verification bypass vulnerability in the joserfc JSON Object Signing and Encryption JOSE library CVE-2026-49852 used by IBM InfoSphere Optim Archive Viewer has been addressed by upgrading the component to version 1.6.8. Vulnerability Details...

CVE-2026-97055

SigNoz from v0.8.0 before v0.143.0 defaults the JWT tokenizer signing secret tokenizer::jwt::secret, set via SIGNOZTOKENIZERJWTSECRET or the deprecated SIGNOZJWTSECRET to an empty string, and Config.Validate does not reject the empty value, so a deployment that does not configure a secret starts ...

EUVD-2026-85774

SigNoz from v0.8.0 before v0.143.0 defaults the JWT tokenizer signing secret tokenizer::jwt::secret, set via SIGNOZTOKENIZERJWTSECRET or the deprecated SIGNOZJWTSECRET to an empty string, and Config.Validate does not reject the empty value, so a deployment that does not configure a secret starts ...

CVE-2026-97055

SigNoz versions v0.8.0 before v0.143.0 are vulnerable to an authentication bypass because the JWT tokenizer signing secret defaults to an empty string. Since Config.Validate() fails to reject empty values, deployments without a configured secret sign and verify session tokens with an empty HMAC k...

SUSE-SU-2026:23910-1 Security update for cjose

This update for cjose fixes the following issues: - CVE-2026-53938: missing encryptedkey length validation during AES Key Wrap decryption can cause heap-based buffer overflow bsc1279844. - CVE-2026-53939: zero-filled content-encryption key generation in AES-CBC-HMAC JWE encryption within cjose ca...

OPENSUSE-SU-2026:21944-1 Security update for cjose

This update for cjose fixes the following issues: - CVE-2026-53938: missing encryptedkey length validation during AES Key Wrap decryption can cause heap-based buffer overflow bsc1279844. - CVE-2026-53939: zero-filled content-encryption key generation in AES-CBC-HMAC JWE encryption within cjose ca...

CVE-2026-85288

Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WMMACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback without the validation used by command. A tampered shortcuts.xml macro...

CVE-2026-85288 Notepad++: Shortcuts.xml macro HMAC bypass still reachable via the "Run a Macro Multiple Times" dialog

Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WMMACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback without the validation used by command. A tampered shortcuts.xml macro...

CVE-2026-85288 Notepad++: Shortcuts.xml macro HMAC bypass still reachable via the "Run a Macro Multiple Times" dialog

Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WMMACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback without the validation used by command. A tampered shortcuts.xml macro...

CVE-2026-85288 Notepad++: Shortcuts.xml macro HMAC bypass still reachable via the "Run a Macro Multiple Times" dialog

Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WMMACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback without the validation used by command. A tampered shortcuts.xml macro...

CVE-2026-85288

The open-source source code editor Notepad++ is vulnerable in versions prior to 8.9.8 due to incomplete shortcuts.xml HMAC validation . The WM_MACRODLGRUNMACRO entry point (Run a Macro Multiple Times) calls macroPlayback() without the validation applied by command() . This allows a tampered macro...

CVE-2026-85288: Improper Neutralization of Special Elements used in an OS Command

Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WMMACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback without the validation used by command. A tampered shortcuts.xml macro...

PT-2026-96850

Name of the Vulnerable Software and Affected Versions Notepad++ versions prior to 8.9.8 Description Notepad++ incompletely enforces HMAC Hash-based Message Authentication Code validation for the shortcuts.xml file. The issue occurs because the WM MACRODLGRUNMACRO entry point, used for running a...

golang-fips: Golang FIPS zeroed buffer

A vulnerability was found in Golang FIPS OpenSSL. This flaw allows a malicious user to randomly cause an uninitialized buffer length variable with a zeroed buffer to be returned in FIPS mode. It may also be possible to force a false positive match between non-equal hashes when comparing a trusted...

[SECURITY] [DLA 4787-1] ruby-jwt security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4787-1 [email protected] https://www.debian.org/lts/security/ Abhijith PA September 18, 2026 https://wiki.debian.org/LTS -...

Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

Summary The Mnemosyne sync server's authentication check decoded JWT bearer tokens but never verified their HMAC-SHA256 signatures. Any well-formed token was accepted, allowing an unauthenticated attacker to impersonate any user and read or modify their sync data. Severity: Critical CVSS 3.1:...

GHSA-XCW4-53CC-HV32 Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

Summary The Mnemosyne sync server's authentication check decoded JWT bearer tokens but never verified their HMAC-SHA256 signatures. Any well-formed token was accepted, allowing an unauthenticated attacker to impersonate any user and read or modify their sync data. Severity: Critical CVSS 3.1:...

CVE-2026-63405: Insufficient Verification of Data Authenticity

AnyCable is a realtime server for reliable two-way communication that supports any backend. Prior to 1.6.15, the Pusher-compatible REST API in pusher/http.go includes the caller-supplied bodymd5 value in the HMAC input but does not calculate the digest of the received request body or compare it...

Linux Distros Unpatched Vulnerability : CVE-2026-90333

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - dm-integrity: replace forgeable discard filler with a keyed sector marker The discard-block check in dmintegrityrwtag treats a stored tag of all 0xf6 bytes...

EulerOS 2.0 SP10 : python-jwt (EulerOS-SA-2026-3761)

According to the versions of the python-jwt packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit Critical Header Parameter defined in RFC...