CVE-2026-44167 phpseclib: CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc. This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52...

CVE-2026-44167

phpseclib contains a mitigation bypass for CVE-2024-27355 in the OID handling path (ASN1::decodeOID). Prior to versions 1.0.29, 2.0.54, and 3.0.52, loading untrusted ASN.1 data (e.g., X.509 certificates, RSA keys) could trigger a denial-of-service. The vulnerability is fixed in 1.0.29, 2.0.54, an...

CVE-2026-7790 Unbounded chunk-size hex digits in cowlib cause quadratic CPU and memory DoS

Uncontrolled Resource Consumption vulnerability in ninenines cowlib cowhttpte module allows Excessive Allocation. The chunked transfer-encoding parser in cowhttpte accepts an unbounded number of hex digits in the chunk-size field. Each digit causes a bignum multiplication Len 16 + digit, so parsi...

PT-2026-39731

Name of the Vulnerable Software and Affected Versions cowlib versions 0.6.0 through 2.16.0 Description An uncontrolled resource consumption issue in the cow http te module allows for excessive allocation. The chunked transfer-encoding parser accepts an unbounded number of hex digits in the...

CVE-2026-44500 ZEBRA: Allocation Amplification in Inbound Network Deserializers

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0, prior to zebra-chain version 7.0.0, and prior to zebra-network version 6.0.0, several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter...

CVE-2026-44500 ZEBRA: Allocation Amplification in Inbound Network Deserializers

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0, prior to zebra-chain version 7.0.0, and prior to zebra-network version 6.0.0, several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter...

Zebra Vulnerable to Allocation Amplification in Inbound Network Deserializers

CVE-2026-44500: Allocation Amplification in Inbound Network Deserializers Summary Several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter protocol or consensus limits were enforced. An unauthenticated or...

GHSA-438Q-JX8F-CCCV Zebra Vulnerable to Allocation Amplification in Inbound Network Deserializers

CVE-2026-44500: Allocation Amplification in Inbound Network Deserializers Summary Several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter protocol or consensus limits were enforced. An unauthenticated or...

CoreDNS DoH GET path missing size validation causes CPU and memory amplification

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Improper Handling of Highly Compressed Data (Data Amplification)

Overview io.netty:netty-codec-http2 is a HTTP2 sub package for the netty library, an event-driven asynchronous network application framework. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the HttpContentDecompressor and...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview io.netty:netty-codec is an event-driven asynchronous network application framework. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the HttpContentDecompressor and DelegatingDecompressorFrameListener components when th...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the HttpContentDecompressor and DelegatingDecompressorFrameListener components when the Content-Encoding header is set to br, zstd, or snappy. An attacker can exhaust...

PT-2026-38620

CVE-2026-44500: Allocation Amplification in Inbound Network Deserializers Summary Several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter protocol or consensus limits were enforced. An unauthenticated or...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview exifreader is a Library that parses Exif metadata in images. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification due to decompressing PNG zTXt metadata without enforcing a built-in maximum decompressed output size. When...

phpseclib has a CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

Impact Anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc Patches https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc Workarounds No. References...

GHSA-3QPQ-R242-JQJ7 phpseclib has a CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

Impact Anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc Patches https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc Workarounds No. References...

CVE-2026-28221

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-28221 Wazuh: Pre-auth stack-based buffer overflow in wazuh-remoted print_hex_string() due to signed char promotion on x86_64

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-28221

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-28221

CVE-2026-28221 – Wazuh pre-auth stack-based buffer overflow is confirmed in wazuh-remoted’s print_hex_string(). From versions 4.8.0 to before 4.14.4, attacker-controlled bytes are formatted with sprintf(dst_buf + 2*i, "%.2x", src_buf[i]) on signed-char platforms, causing sign-extension and an out...