Amazon Linux 2023 : jackson-core (ALAS2023-2026-3188)

"It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3188 advisory. NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates stringified numbers with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and...

Important: jackson-core

Issue Overview: NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9\.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the...

GHSA-P6PP-M3F8-5C89 jackson-core: ReDoS: quadratic backtracking in NumberInput.PATTERN_FLOAT via looksLikeValidNumber()

Status FULLY REPRODUCED with a clean, textbook empirical signature: measured runtime grew almost exactly 4x for every doubling of input size across five consecutive doublings 5,000 → 160,000 characters, confirming On² behavior. A single 160,000-character string smaller than a typical HTTP request...

CVE-2026-89407

A flaw was found in jackson-core. An attacker can supply specially crafted JSON that, when deserialized into a numeric target type, triggers a Regular expression Denial of Service ReDoS vulnerability. This occurs due to quadratic backtracking in the NumberInput.looksLikeValidNumber method's...

Linux Distros Unpatched Vulnerability : CVE-2026-89407

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates stringified numbers with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?,...

DEBIAN-CVE-2026-89407

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...

CVE-2026-89407

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...

UBUNTU-CVE-2026-89407

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...

CVE-2026-89407

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...

CVE-2026-89407 jackson-core: quadratic backtracking in NumberInput.PATTERN_FLOAT via looksLikeValidNumber() enables ReDoS

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...

CVE-2026-89407

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...

PT-2026-96783

Name of the Vulnerable Software and Affected Versions jackson-core versions 2.17.0 through 2.17.2 Description The looksLikeValidNumber function in NumberInput uses regular expressions to pre-validate stringified numbers. The PATTERN FLOAT regex contains adjacent quantifiers over the same characte...

CVE-2026-89407: Inefficient Regular Expression Complexity

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...

SUSE CVE-2026-89407

NumberInput.looksLikeValidNumber in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERNFLOAT +-?0-9.?0-9+eE+-?0-9+?, present since 2.17.0, and PATTERNFLOATTRAILINGDOT, added in 2.17.2. PATTERNFLOAT places adjacent quantifiers over the same character...