Thumbor has HMAC validation bypass via multiple .replace() calls when removing URL signature

HMAC validation bypass via multiple .replace calls when removing URL signature Summary Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace when removing the signature from the URL before validation. Since .replace removes all occurrences of the substring, an attacker can...

GHSA-MW3H-QJXJ-6XG9 Thumbor has HMAC validation bypass via multiple .replace() calls when removing URL signature

HMAC validation bypass via multiple .replace calls when removing URL signature Summary Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace when removing the signature from the URL before validation. Since .replace removes all occurrences of the substring, an attacker can...

Improper Verification of Cryptographic Signature

Overview thumbor is a thumbor is an open-source photo thumbnail service by globo.com Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the URL signature removal process. An attacker can manipulate the validated URL and bypass intended access...

CVE-2026-53501

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace when removing the signature from the URL before validation. Since .replace removes all occurrences of the substring, an attacker can insert...

CVE-2026-53501 Thumbor has HMAC validation bypass via multiple .replace() calls when removing URL signature

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace when removing the signature from the URL before validation. Since .replace removes all occurrences of the substring, an attacker can insert...

CVE-2026-53501 Thumbor has HMAC validation bypass via multiple .replace() calls when removing URL signature

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace when removing the signature from the URL before validation. Since .replace removes all occurrences of the substring, an attacker can insert...

CVE-2026-53501

Thumbor (open-source image thumbnail service by globo.com) is affected prior to version 7.8.0. The vulnerability stems from using Python’s .replace() to strip the signature from the URL before HMAC validation, which removes all occurrences of the substring. An attacker can insert the same signatu...

CVE-2025-40934

XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted. An attacker can remove the signature from the XML document to make it pass the verification check. XML-Sig is a Perl module to validate signatures on XML files. An unsigned XML file should retur...

SUSE-SU-2023:2850-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE

This update for MozillaFirefox, MozillaFirefox-branding-SLE fixes the following issues: Changes in MozillaFirefox and MozillaFirefox-branding-SLE: This update provides Firefox Extended Support Release 115.0 ESR New: - Required fields are now highlighted in PDF forms. - Improved performance on...

CVE-2022-26493

Xecurify's miniOrange Premium, Standard, and Enterprise Drupal SAML SP modules possess an authentication and authorization bypass vulnerability. An attacker with access to a HTTP-request intercepting method is able to bypass authentication and authorization by removing the SAML Assertion Signatur...

CVE-2022-26493

Xecurify's miniOrange Premium, Standard, and Enterprise Drupal SAML SP modules possess an authentication and authorization bypass vulnerability. An attacker with access to a HTTP-request intercepting method is able to bypass authentication and authorization by removing the SAML Assertion Signatur...

OPENSUSE-SU-2022:0074-1 Security update for perl-App-cpanminus

This update for perl-App-cpanminus fixes the following issues: updated to 1.7045 see /usr/share/doc/packages/perl-App-cpanminus/Changes Security fixes: - CVE-2020-16154 remove the functionality to verify CHECKSUMS signature updated to 1.7044 see /usr/share/doc/packages/perl-App-cpanminus/Changes...

MGASA-2019-0348 Updated gnupg2 packages fix security vulnerability

gnupg2 is updated to 2.2.18 and fix security vulnerability: Web of Trust forgeries using collisions in SHA-1 signatures CVE-2019-14855 Note that this change removes all SHA-1 based key signature newer than 2019-01-19 from the web-of-trust. This includes all key signature created with dsa1024 keys...