Security vulnerabilities and automated fixes for cryptography issues
14 posts found
Cryptographic vulnerabilities include use of weak algorithms, improper key management, insufficient randomness, and incorrect implementation of encryption protocols. These flaws can expose sensitive data, enable man-in-the-middle attacks, or allow forged authentication tokens.
Related CWEs
Affected Languages
A critical vulnerability in `lib/sp_crypto.c` allowed the CSPRNG function to fall back to predictable randomness based on `time(NULL)` XORed with a counter when `/dev/urandom` was unavailable. An attacker who knew the approximate generation time could brute-force the output. The fix removes the unsafe fallback entirely, failing fast instead of silently degrading to weak randomness.
A critical authentication bypass vulnerability in PyJWT 2.12.1 allowed attackers to forge valid JSON Web Tokens, potentially bypassing application authentication mechanisms entirely. The vulnerability was fixed in PyJWT 2.13.0 through security improvements to token validation logic. This fix is essential for any application relying on JWT-based authentication.
CVE-2026-41676 is a high-severity vulnerability in the rust-openssl crate that could allow attackers to exploit cryptographic operations. The fix involves upgrading from version 0.10.63 to 0.10.81, removing unsafe dependency chains, and ensuring proper OpenSSL binding integrity. This vulnerability demonstrates why keeping cryptographic libraries current is critical for production Rust applications.
A critical integer overflow vulnerability was discovered in OpenSSL's `tls1_export_keying_material()` function inside `ssl/t1_enc.c`, where attacker-influenced length values could wrap around during arithmetic, causing the `vallen` buffer to be allocated far smaller than needed. The four subsequent `memcpy` calls would then write beyond the heap buffer boundary, enabling potential remote code execution. The fix adds two targeted overflow checks before the arithmetic operations, preventing the al
A critical buffer overflow vulnerability was discovered in `helpers/src/edhoc_cipher_suite_2.c` within the EDHOC cipher suite 2 implementation. The `mbedtls_ecp_decompress()` function used `raw_key_len` to copy a compressed peer public key into a fixed-size buffer without first verifying that the key length fit within the destination. An attacker sending a crafted EDHOC message with an oversized compressed key could exploit this to corrupt adjacent memory, potentially achieving remote code execu
A high-severity vulnerability (CVE-2026-41676) was discovered in the `rust-openssl` crate (version 0.10.73) used in the `apps/rust-sdk` component, as flagged by the Trivy scanner in `Cargo.lock`. The fix upgrades the `openssl` crate from `0.10.73` to `0.10.80` and `openssl-sys` from `0.9.109` to `0.9.116`, closing an exploitable attack surface in production code that handles user-influenced input. Because the Rust SDK sits in the production codebase, any attacker able to reach the OpenSSL code p
CVE-2026-41676 is a high-severity vulnerability in the rust-openssl crate, which provides OpenSSL bindings for Rust applications. The fix involves upgrading the dependency from version 0.10.75 to 0.10.78 in the project's Cargo.lock file, closing a security gap that could expose applications to adversarial exploitation. Keeping cryptographic dependencies current is one of the most impactful and straightforward security practices any Rust team can adopt.
CVE-2026-41676 is a high-severity vulnerability discovered in the rust-openssl crate, which provides OpenSSL bindings for Rust applications. Left unpatched, this flaw could expose backend services to cryptographic or memory-safety attacks through the underlying OpenSSL layer. The fix involved upgrading the rust-openssl dependency from version 0.10.75 to 0.10.78 in the project's Cargo.toml and Cargo.lock files.
A critical buffer overflow vulnerability was discovered and patched in `gimbal_md5.c`, where unsafe C string functions were used without size bounds checking. Left unpatched, this flaw could allow attackers to corrupt memory, crash processes, or execute arbitrary code. The fix replaces unbounded functions with their size-aware counterparts, enforcing a strict invariant: buffer reads must never exceed the declared length.
A high-severity vulnerability was discovered in a web application's file download pipeline where the `nodejs-file-downloader` dependency was used without any cryptographic verification of downloaded content. Without checksum or signature validation, attackers positioned between the server and client could silently swap legitimate files for malicious ones. This fix closes that window by enforcing integrity verification before any downloaded content is trusted or executed.
A critical vulnerability (CVE-2025-9287) was discovered in the `cipher-base` npm package that allows attackers to manipulate cryptographic hash operations, potentially compromising data integrity and security guarantees in affected applications. The fix, delivered in `cipher-base` version 1.0.5, patches this hash manipulation flaw and should be applied immediately by any project using the affected package. Understanding this vulnerability highlights why cryptographic dependencies deserve the sam
A critical vulnerability was discovered in AESEncryption.java where decrypted plaintext was being printed directly to standard output, exposing sensitive data to anyone with access to application logs. This fix eliminates the dangerous logging pattern that completely undermined the purpose of AES encryption. Understanding this vulnerability is essential for any developer building applications that handle sensitive encrypted data.