CVE-2026-40194

phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::getbinarypacket uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp,...

CVE-2026-40194 phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()

phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::getbinarypacket uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp,...

EUVD-2016-6374

Malware in sbrugna...

EUVD-2013-2042

Malware in sbrugna...

EUVD-2022-7518

Malicious code in bioql PyPI...

EUVD-2022-5763

Malicious code in bioql PyPI...

Timing Side-channel Attack

signxml is vulnerable to a Timing side-channel attack. The vulnerability is due to information leakage during HMAC comparison when requirex509=False and hmackey is used, allowing attackers to infer the correct HMAC...

CVE-2019-10071

The code which checks HMAC in form submissions used String.equals for comparisons, which results in a timing side channel for the comparison of the HMAC signatures. This could lead to remote code execution if an attacker is able to determine the correct signature for their payload. The comparison...

CVE-2015-10004

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC...

Timing Attack

Adyen is vulnerable to a Timing Attack. The vulnerability is due to improper constant-time comparison of HMACs in the isvalidhmac and isvalidhmacnotification methods, allowing an attacker to infer the correct HMAC by measuring timing differences...

GHSA-5VW4-V588-PGV8 robbert229/jwt's token validation methods vulnerable to a timing side-channel during HMAC comparison

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC...

CVE-2015-10004

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC...

Design/Logic Flaw

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC...

CVE-2015-10004 Timing side-channel in github.com/robbert229/jwt

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC...

CVE-2015-10004 Timing side-channel in github.com/robbert229/jwt

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC...

Non-constant time HMAC comparison

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier does not use a constant-time comparison when checking whether two HMACs are equal. This could potentially allow attackers to use statistical methods to obtain a valid HMAC for an attacker-controlled input value. Jenkins 2.219, LTS 2.204.2 now use...

GO-2020-0023 Timing side-channel in github.com/robbert229/jwt

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC...

Jenkins < 2.219, < 2.204.2 LTS Multiple Vulnerabilities - Linux

Jenkins is prone to multiple vulnerabilities. Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

jenkins -- multiple vulnerabilities

Jenkins Security Advisory: Description High SECURITY-1682 / CVE-2020-2099 Inbound TCP Agent Protocol/3 authentication bypass Medium SECURITY-1641 / CVE-2020-2100 Jenkins vulnerable to UDP amplification reflection attack Medium SECURITY-1659 / CVE-2020-2101 Non-constant time comparison of inbound...

CVE-2019-10071

The code which checks HMAC in form submissions used String.equals for comparisons, which results in a timing side channel for the comparison of the HMAC signatures. This could lead to remote code execution if an attacker is able to determine the correct signature for their payload. The comparison...