Alertas de Seguridad de la Información

M Alto vulnerabilidad

17/08/2026

[CVE-2026-74882] openssl_encrypt versions before 1.4.0 contain an insecure default configuration that trusts the enti…

openssl_encrypt versions before 1.4.0 contain an insecure default configuration that trusts the entire RFC 1918 private address space in IntegrityProxyConfig trusted_proxies. Attackers on private networks can forge client certificate headers to bypass mTLS authentication when ProxyAuth validation is relaxed or modified.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

17/08/2026

[CVE-2026-74883] openssl_encrypt versions before 1.4.0 contain a sandbox bypass vulnerability where the plugin sandbo…

openssl_encrypt versions before 1.4.0 contain a sandbox bypass vulnerability where the plugin sandbox fails to restrict alternative file access methods like pathlib.Path and io.open. Attackers can import pathlib or io modules to read and write arbitrary files, completely bypassing the restricted_open file access controls.

nvdaltovulnerabilidad CVSS 8.8 NVD

M Crítico vulnerabilidad

17/08/2026

[CVE-2026-74872] openssl_encrypt versions before 1.4.0 contain an arbitrary code execution vulnerability in the Whirl…

openssl_encrypt versions before 1.4.0 contain an arbitrary code execution vulnerability in the Whirlpool hash implementation that uses broad glob patterns to load .so modules without integrity verification. Attackers can place malicious .so files matching the whirlpool*py313*.so pattern in site-packages directories to achieve native code execution when the module is loaded.

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

17/08/2026

[CVE-2026-74874] openssl_encrypt versions before 1.4.0 use Python's non-cryptographic random module for steganographi…

openssl_encrypt versions before 1.4.0 use Python's non-cryptographic random module for steganographic pixel selection in the generate_pseudorandom_sequence function. Attackers who know the password can recover the Mersenne Twister state from approximately 624 outputs and predict pixel locations containing hidden data for extraction.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

17/08/2026

[CVE-2026-74875] openssl_encrypt versions before 1.4.0 silently skip JSON schema validation when the jsonschema libra…

openssl_encrypt versions before 1.4.0 silently skip JSON schema validation when the jsonschema library is not installed, allowing malformed metadata to be accepted. Attackers can remove the jsonschema package or supply unknown metadata format versions to bypass all schema checks and process malicious data.

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

13/08/2026

[CVE-2026-70454] rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS ce…

rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to validate server TLS certificates against a trusted CA or verify certificate hostname matching to decrypt …

nvdaltovulnerabilidad CVSS 8.0 NVD

M Alto vulnerabilidad

13/08/2026

[CVE-2026-14456] Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packet…

Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unknown destination connection IDs, it can allocate and queue new incoming channels without enforcing any limit. Impact summary: A remote peer that can make many Initial packets reach the server listener faster than the application accepts connections, can cause the memory allocated to store …

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

03/08/2026

[CVE-2026-41447] FirmaCheck for Windows before 1.3.16 contains a dll hijacking vulnerability that allows local attack…

FirmaCheck for Windows before 1.3.16 contains a dll hijacking vulnerability that allows local attackers to execute arbitrary code by placing a crafted openssl.cnf file in the unvalidated C:\Program Files (x86)\Common Files\SSL\ directory path. Attackers can write a malicious OpenSSL configuration file referencing an attacker-controlled DLL to achieve code execution at startup process privilege lev…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

01/08/2026

[CVE-2026-66402] FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains multiple TLS certificate identity valid…

FreeRDP before 3.29.0 (affected versions

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

24/07/2026

[CVE-2026-66033] libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vul…

libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2_cipher_crypt() function in src/openssl.c that allows a malicious SSH server to crash any connecting client by negotiating AES-GCM ciphers during handshake. Attackers can exploit the underflow in the expression computing blocksize minus aadlen minus authentication tag length to…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

23/07/2026

[CVE-2026-15981] The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in a…

The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.4.4. This is due to the mo_saml_validate_signature() function performing a loose boolean check on the raw tri-state integer returned by PHP's openssl_verify(), causing an error return value of -1 to be evaluated as truthy and therefore treated as a successful sign…

nvdcriticovulnerabilidad CVSS 9.8 NVD

S Alto vulnerabilidad

17/07/2026

[CVE-2026-45784] rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.50 until 0.10.80…

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.50 until 0.10.80, CipherCtxRef::cipher_update_inplace in openssl/src/cipher_ctx.rs incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers EVP_aes_{128,192,256}_wrap_pad. For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attac…

nvdaltovulnerabilidad CVSS 7.1 NVD

M Crítico vulnerabilidad

14/07/2026

[CVE-2026-45363] ruby-jwt is a Ruby implementation of the RFC 7519 OAuth JSON Web Token standard. Prior to 2.10.3 and…

ruby-jwt is a Ruby implementation of the RFC 7519 OAuth JSON Web Token standard. Prior to 2.10.3 and 3.2.0, JWT.decode(token, '', true, algorithm: 'HS256') accepts an attacker-forged token because OpenSSL::HMAC.digest('SHA256', '', payload) returns a valid digest under an empty key and no empty-key precondition exists in the HMAC algorithm. The same path is reached when a keyfinder block or key_fi…

nvdcriticovulnerabilidad CVSS 9.1 NVD

M Alto vulnerabilidad

13/07/2026

[CVE-2026-58101] Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer derefer…

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3_EXT_d2i(ext) returns NULL when an extension's DER value fails to parse. basicC, ia5string, and auth_att dereference its result without a NULL check. keyid_data also dereferences akid->keyid, which is NULL for an empty AKI SEQUENCE (DER 30 00) even when the parse succeeds. A caller inv…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

13/07/2026

[CVE-2026-58102] Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certi…

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hv_exts. When building the extension hash (via extensions(), extensions_by_long_name(), extensions_by_oid(), or has_extension_oid()), the code passes OBJ_obj2txt()'s return value as the hash-key length; because that value is the OID's full text length rather than the bytes w…

nvdcriticovulnerabilidad CVSS 9.1 NVD

W Alto vulnerabilidad

25/06/2026

[CVE-2026-6331] HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted as …

HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated tag could pass verification. The fix requires the supplied tag length to exactly equal the MAC length …

nvdaltovulnerabilidad CVSS 7.5 NVD

W Alto vulnerabilidad

25/06/2026

[CVE-2026-11310] X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert…

X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra (OPENSSL_EXTRA) and whose application validates certificates by calling X509_verify_cert() with caller-supplied untrusted intermediate certificates; for those users it is critical, otherwise the library is unaffected. In particular, native wol…

nvdaltovulnerabilidad CVSS 7.5 NVD

W Alto vulnerabilidad

25/06/2026

[CVE-2026-11999] X.509 trust-chain bypass (path-depth exhaustion) in the OpenSSL compatibility certificate verifier (…

X.509 trust-chain bypass (path-depth exhaustion) in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra whose application calls X509_verify_cert() with caller-supplied untrusted intermediates; for those users it is critical, otherwise the library is unaffected. Native wolfSSL TLS/DTLS usage is not impacted. X509_verify_ce…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

20/06/2026

[CVE-2026-9265] Crypt::OpenSSL::PKCS12 versions before 1.96 for Perl permits a heap OOB read in print_attribute UTF8…

Crypt::OpenSSL::PKCS12 versions before 1.96 for Perl permits a heap OOB read in print_attribute UTF8STRING path. print_attribute() copies a UTF8STRING ASN.1 attribute value into a heap buffer sized exactly to its declared length via strncpy, leaving no NUL terminator. Downstream callers run strlen() on the result and pass the inflated length to newSVpvn(), copying attacker-influenced adjacent hea…

nvdcriticovulnerabilidad CVSS 9.1 NVD

O Alto vulnerabilidad

09/06/2026

[CVE-2026-7383] Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in AS…

Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap buffer overflow. Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour. In ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination size for Unicode output is computed in a…

nvdaltovulnerabilidad CVSS 8.1 NVD