EUVD-2026-67053

opensslencrypt pip package openssl-encrypt versions = 1.4.8 contain a CWD-relative configuration file resolution flaw in cryptsettings.py, where CONFIGFILE originally the absolute per-user path /.cryptsettings.json is reassigned at line 84 to the bare relative name 'cryptsettings.json'. As a...

CVE-2026-81697 openssl_encrypt before 1.4.9 KDF Downgrade via CWD-relative Configuration

opensslencrypt pip package openssl-encrypt versions = 1.4.8 contain a CWD-relative configuration file resolution flaw in cryptsettings.py, where CONFIGFILE originally the absolute per-user path /.cryptsettings.json is reassigned at line 84 to the bare relative name 'cryptsettings.json'. As a...

CVE-2026-81687 openssl_encrypt before 1.4.9 Denial of Service via KDF

opensslencrypt versions before 1.4.9 fail to enforce a time ceiling on key derivation function iteration counts specified in file metadata. Attackers can craft files with extremely high KDF iteration counts to consume CPU resources for unbounded periods before password verification occurs...

CVE-2026-81687

openssl_encrypt versions before 1.4.9 are vulnerable to a denial-of-service condition caused by the absence of a time ceiling on key derivation function (KDF) iteration counts embedded in file metadata. An attacker can craft a file with an extremely high iteration count, forcing the application t...

EUVD-2026-67043

opensslencrypt versions before 1.4.9 fail to enforce a time ceiling on key derivation function iteration counts specified in file metadata. Attackers can craft files with extremely high KDF iteration counts to consume CPU resources for unbounded periods before password verification occurs...

CVE-2026-81687 openssl_encrypt before 1.4.9 Denial of Service via KDF

opensslencrypt versions before 1.4.9 fail to enforce a time ceiling on key derivation function iteration counts specified in file metadata. Attackers can craft files with extremely high KDF iteration counts to consume CPU resources for unbounded periods before password verification occurs...

CVE-2026-13586

A flaw was found in Bouncy Castle for Java. This vulnerability allows a remote attacker to cause a Denial of Service DoS by exploiting an iteration-count bound issue in the PKCS12 Message Authentication Code MAC and bag-decryption Key Derivation Function KDF. This could make the affected system...

PT-2026-82600

Name of the Vulnerable Software and Affected Versions openssl encrypt versions prior to 1.4.9 Description Insufficient validation of key derivation function KDF costs in crafted files allows attackers to trigger unbounded memory and CPU exhaustion during pre-authentication processing. By supplyin...

PT-2026-82616

Name of the Vulnerable Software and Affected Versions openssl encrypt versions prior to 1.4.9 Description The software fails to validate Key Derivation Function KDF cost parameters within encrypted file metadata and keystore headers. This allows an unauthenticated attacker to trigger unbounded...

CVE-2026-58063

A flaw was found in Bouncy Castle for Java. A remote attacker can exploit this vulnerability by providing a specially crafted BCFKS keystore file that specifies an unbounded Key Derivation Function KDF cost. This can lead to a Denial of Service DoS as the system attempts to process the file,...

CVE-2026-15055

A flaw was found in Bouncy Castle for Java. An attacker could exploit this vulnerability by providing a specially crafted input to the PKCS8 / PBES2 decryptors. This input could specify an excessively high Key Derivation Function KDF cost, causing the decryptor to consume significant computationa...

Use of Password Hash With Insufficient Computational Effort

Overview openssl-encrypt is an A package for secure file encryption and decryption based on modern ciphers using heavy-compute-load chaining of hashing and KDF to generate strong encryption password based on users provided password to ensure secure encryption of files Affected versions of this...

CVE-2026-74888

opensslencrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords...

CVE-2026-74888

The PHP package openssl_encrypt before 1.4.0 uses a non-standard PBKDF2 construction (iterations=1 per call) that weakens key derivation, enabling attackers to more efficiently crack passwords protecting legacy encrypted files. No in-the-wild exploitation is reported; upgrading to version 1.4.0 i...

CVE-2026-74888

opensslencrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords...

EUVD-2026-60107

opensslencrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords...

CVE-2026-74871

The jahlives/openssl_encrypt PHP package before 1.4.6 has a KDF bypass: in sequential XOR composition mode the final stage cancels out, so attackers with local access can crack passwords at SHA-256 speed instead of the configured memory-hard KDF cost. CVSS 6.2 (MEDIUM, local). No in-the-wild expl...

EUVD-2026-60090

opensslencrypt versions before 1.4.6 contain a key derivation flaw in sequential XOR composition mode where the last stage cancels out during key generation. When configured with a single KDF and no prior hashing stage, attackers can bypass memory-hard key derivation and perform offline password...

CVE-2026-74871 openssl_encrypt before 1.4.6 KDF Bypass via Sequential-XOR

opensslencrypt versions before 1.4.6 contain a key derivation flaw in sequential XOR composition mode where the last stage cancels out during key generation. When configured with a single KDF and no prior hashing stage, attackers can bypass memory-hard key derivation and perform offline password...

CVE-2026-74871 openssl_encrypt before 1.4.6 KDF Bypass via Sequential-XOR

opensslencrypt versions before 1.4.6 contain a key derivation flaw in sequential XOR composition mode where the last stage cancels out during key generation. When configured with a single KDF and no prior hashing stage, attackers can bypass memory-hard key derivation and perform offline password...