Jahlives Openssl Encrypt: 25 Vulnerabilities Disclosed in Single Batch, Patched in 1.4.9
Jahlives' Openssl Encrypt product was hit with 25 vulnerabilities on August 27, 2026, ranging from critical to low severity, impacting key derivation, plugin security, and input validation.
Key findings
- 25 vulnerabilities in Jahlives' Openssl Encrypt disclosed on August 27, 2026.
- Critical flaws include arbitrary code execution via untrusted plugins and key substitution.
- Multiple vulnerabilities allow for denial-of-service through unbounded memory allocation.
- Weak key derivation and parameter validation enable faster offline password guessing.
- All disclosed issues are resolved in Openssl Encrypt version 1.4.9.
- Vulnerabilities affect plugin security, file encryption, identity management, and more.
On August 27, 2026, a significant batch of 25 vulnerabilities was disclosed for Jahlives' Openssl Encrypt product, all detailed within a single advisory. These vulnerabilities, spanning critical to low severity, primarily revolve around insecure handling of cryptographic parameters, insufficient input validation, and flawed plugin and file processing mechanisms. The sheer volume and varied nature of these flaws indicate a widespread issue within the product's security architecture, potentially exposing users to memory exhaustion, unauthorized code execution, and data compromise.
Several vulnerabilities stem from inadequate validation of Key Derivation Function (KDF) cost parameters and memory costs. CVE-2026-81721 and CVE-2026-81699 highlight unbounded memory allocation due to excessively large KDF parameters in encrypted file metadata and keystore headers. Similarly, CVE-2026-81720 points to out-of-memory conditions during key derivation caused by invalid memory_cost parameters in identity file protection blocks. CVE-2026-81704 and CVE-2026-81689 also touch upon weak key derivation, using unstretched SHA-256 or bare SHA-256 instead of more robust algorithms like Argon2id, making offline password guessing significantly faster.
Plugin security is another major theme. CVE-2026-81719 describes a critical flaw where unsigned, third-party plugins could be compiled and executed before the runtime sandbox is installed, due to a default 'WARN' signature policy. CVE-2026-81714 details a suffix-tolerant fingerprint matching issue in enrolling trust anchors, potentially allowing attackers to enroll colliding keys. Furthermore, CVE-2026-81700 reveals a signature verification vulnerability in gpg_runner.verify_detached that accepts revoked and expired keys, and CVE-2026-81701 indicates that a denylist approach to identifying trusted built-in plugins allows unsigned plugins to bypass verification.
Input validation and sanitization failures are prevalent across multiple CVEs. CVE-2026-81707, a critical vulnerability, allows attackers to inject ANSI escape sequences into the email field of imported identity documents, forging the fingerprint verification line. CVE-2026-81698 describes a shell injection vulnerability in the info command's reconstructed CLI block due to untrusted metadata fields being interpolated without proper quoting. Several low-severity issues, including CVE-2026-81717, CVE-2026-81696, CVE-2026-81695, and CVE-2026-81694, involve path traversal, failure to sanitize terminal control characters, and improper handling of filenames and key IDs, which can lead to forged verification information or unintended file access. CVE-2026-81693 and CVE-2026-81692 highlight denial-of-service risks through unbounded memory allocation by failing to validate fields in QR JSON payloads and FLAC files, respectively.
The batch also includes vulnerabilities related to identity and file handling. CVE-2026-81702, a critical flaw, allows attackers to substitute public keys in identity stores by failing to re-derive and validate fingerprints when loading identities. CVE-2026-81703 points to unencrypted embedded post-quantum private keys in file metadata, bypassing authentication. CVE-2026-81706 describes namespace collisions in IdentityStore, enabling shadowed contact entries. CVE-2026-81705 notes that file passwords are not redacted in debug argv dumps under certain conditions. CVE-2026-81691 indicates that attackers on the network path can intercept cleartext credentials by exploiting unencrypted HTTP URLs in login functions. Finally, CVE-2026-81690 details a symlink-following flaw in a USB verification scan.
All 25 vulnerabilities were fixed in version 1.4.9 of Openssl Encrypt. Users are strongly advised to update to this version immediately to mitigate the risks associated with these numerous security flaws. The coordinated disclosure of these issues underscores the importance of prompt patching and security reviews for cryptographic libraries.
The sheer number of vulnerabilities disclosed simultaneously suggests a systemic issue within the Openssl Encrypt codebase prior to version 1.4.9. Users relying on this product for cryptographic operations should prioritize updating to the patched version to address critical flaws in KDF validation, plugin security, input sanitization, and key management. The range of impacts, from denial-of-service to account takeover and arbitrary code execution, necessitates immediate attention from all users.
Key Findings:
- 25 vulnerabilities in Jahlives' Openssl Encrypt disclosed on August 27, 2026.
- Critical flaws include arbitrary code execution via untrusted plugins and key substitution.
- Multiple vulnerabilities allow for denial-of-service through unbounded memory allocation.
- Weak key derivation and parameter validation enable faster offline password guessing.
- All disclosed issues are resolved in Openssl Encrypt version 1.4.9.
- Vulnerabilities affect plugin security, file encryption, identity management, and more.
CVE IDs: CVE-2026-81721, CVE-2026-81720, CVE-2026-81719, CVE-2026-81718, CVE-2026-81717, CVE-2026-81716, CVE-2026-81714, CVE-2026-81707, CVE-2026-81706, CVE-2026-81705, CVE-2026-81704, CVE-2026-81703, CVE-2026-81702, CVE-2026-81701, CVE-2026-81700, CVE-2026-81699, CVE-2026-81698, CVE-2026-81696, CVE-2026-81695, CVE-2026-81694, CVE-2026-81693, CVE-2026-81692, CVE-2026-81691, CVE-2026-81690, CVE-2026-81689 Image Prompt: A stylized representation of a digital lock with various cryptographic symbols (like keys, hashes, and circuits) emanating from it, some of which are broken or dissolving into error code fragments. The lock itself is partially transparent, revealing complex, tangled internal mechanisms. The overall color palette should be dark with sharp, contrasting highlights to emphasize the security theme.