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Fixed CVE-2026-44928 (In uriparser before 1.0.2, the function family EqualsUri can misclassify two unequal URIs as equal). (CVE-2026-44928)
Fixed CVE-2026-44927 (In uriparser before 1.0.2, there is pointer difference truncation to int in various places). (CVE-2026-44927)
Fixed CVE-2026-42371 (uriparser before 1.0.1 has numeric truncation in text range comparison). (CVE-2026-42371)
An issue was discovered in uriparser through 0.9.7. ComposeQueryMallocExMm in UriQuery.c has an integer overflow via a long string.
An issue was discovered in uriparser through 0.9.7. ComposeQueryEngine in UriQuery.c has an integer overflow via long keys or values, with a resultant buffer overflow.
An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriFreeUriMembers and uriMakeOwner.
An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriNormalizeSyntax.
URIFUNC() in UriParse.c in uriparser before 0.9.1 has an out-of-bounds read (in uriParseEx functions) for an incomplete URI with an IPv6 address containing an embedded IPv4 address, such as a "//[::44.1" address.
An issue was discovered in uriparser before 0.9.0. UriCommon.c allows attempted operations on NULL input via a uriResetUri function.
An issue was discovered in uriparser before 0.9.0. UriQuery.c allows an out-of-bounds write via a uriComposeQuery or uriComposeQueryEx function because the '&' character is mishandled in certain contexts.
An issue was discovered in uriparser before 0.9.0. UriQuery.c allows an integer overflow via a uriComposeQuery or uriComposeQueryEx function because of an unchecked multiplication.