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Overview

Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input via CSSStyleDeclaration.setProperty(), which fails to validate reserved property names. An attacker can supply a stylesheet containing a declaration named length, replacing the internal counter and triggering excessive memory allocation during cssText serialization, causing process termination.

Remediation

There is no fixed version for cssom.

References

• GitHub Issue
• Vulnerable Code
• Vulnerable Code

Overview

Affected versions of this package are vulnerable to Improper Authorization via improper validation of security-zeroed cache entries when processing client max-stale directives. An unauthenticated attacker can request the same URL with a large max-stale value to retrieve cached responses belonging to other users, including Set-Cookie session credentials from shared-cache entries that were deliberately zeroed for security reasons.

Remediation

There is no fixed version for http-cache-semantics.

References

• GitHub Issue
• Vulnerable Code
• Vulnerable Code

Overview

zod is a TypeScript-first schema declaration and validation library with static type inference

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the handleArrayResult parse logic in $ZodArray, which accumulates every validation issue for each failing element in a large array with no cap or early termination. An attacker can submit a large array to an application using an array schema without a length constraint, causing the process to allocate excessive issue objects and crash due to out-of-memory conditions.

Remediation

Upgrade zod to version 4.6.6 or higher.

References

• GitHub Commit
• GitHub Issue
• GitHub Issue
• GitHub PR

Overview

Affected versions of this package are vulnerable to Origin Validation Error via the _varyMatches() function, which fails to properly handle Vary: * (wildcard) headers due to byte-for-byte string comparison. An attacker can request URLs previously fetched by other clients to receive cached responses intended for different users, disclosing sensitive information across clients. The Vary: * directive signals that a response is uncacheable for any other request, but the flawed comparison allows the wildcard to be bypassed, enabling cross-client cache disclosure.

Remediation

There is no fixed version for http-cache-semantics.

References

• GitHub Issue
• Vulnerable Code

GPL-3.0 license