904 matches found
CVE-2016-15059
Net::IDN::Punycode versions before 2.301 for Perl allow a heap buffer overflow via unchecked writes past the output buffer in encodepunycode. The XS backend builds the encoded label in the string buffer of the scalar it returns, sized from the input length. The loop that emits the digits of each...
CVE-2016-15059 Net::IDN::Punycode versions before 2.301 for Perl allow a heap buffer overflow via unchecked writes past the output buffer in encode_punycode
Net::IDN::Punycode versions before 2.301 for Perl allow a heap buffer overflow via unchecked writes past the output buffer in encodepunycode. The XS backend builds the encoded label in the string buffer of the scalar it returns, sized from the input length. The loop that emits the digits of each...
CLEANSTART-2026-QZ52453 ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label
CVE-2026-39821 affects multiple packages. The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. See references for individual vulnerability details...
PT-2026-96682
Name of the Vulnerable Software and Affected Versions Net::IDN::Punycode versions prior to 2.301 Description A heap buffer overflow occurs in the encode punycode function when using the XS backend. The issue arises because the XS backend constructs the encoded label in a string buffer sized based...
PT-2026-96672
Name of the Vulnerable Software and Affected Versions Net::IDN::UTS46 versions prior to 2.590 Description An issue exists where CPU exhaustion can occur due to quadratic punycode encoding of an overlong label. This happens because the to ascii function performs punycode encoding on each label...
CVE-2016-15059: Heap-based Buffer Overflow
Net::IDN::Punycode versions before 2.301 for Perl allow a heap buffer overflow via unchecked writes past the output buffer in encodepunycode. The XS backend builds the encoded label in the string buffer of the scalar it returns, sized from the input length. The loop that emits the digits of each...
PT-2026-96670
Name of the Vulnerable Software and Affected Versions Net::IDN::Punycode versions prior to 2.590 Description An issue exists that allows CPU exhaustion due to quadratic insertion cost when decoding long labels in the decode punycode function. In the XS backend, each decoded code point is inserted...
CVE-2026-74765
Net::IDN::Punycode versions before 2.590 for Perl allow an out-of-bounds read via integer overflow of the delta accumulator in encodepunycode. The XS backend keeps the punycode delta, and the digit index derived from it, in a signed int. The accumulation delta += m-n h+1 has no overflow check, so...
PT-2026-96673
Name of the Vulnerable Software and Affected Versions Net::IDN::Punycode versions prior to 2.590 Description An issue exists where the encode punycode function fails to validate if the input is well-formed UTF-8. When a string with the UTF-8 flag set over malformed bytes reaches the encoder, the...
Linux Distros Unpatched Vulnerability : CVE-2026-87082
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Net::IDN::Punycode versions before 2.590 for Perl hang, crash or return a wrong label via unvalidated malformed UTF-8 in encodepunycode. Neither backend checks...
Linux Distros Unpatched Vulnerability : CVE-2026-87080
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Net::IDN::Punycode::PP versions before 2.590 for Perl decode a truncated label to a name containing a character it never encoded in decodepunycode. The pure-Per...
CVE-2026-87081: Inefficient Algorithmic Complexity
Net::IDN::UTS46 versions before 2.590 for Perl allow CPU exhaustion via quadratic punycode encoding of an overlong label before the length check in toascii. toascii punycode encodes each label and only then applies the 63-byte DNS limit. encodepunycode in both backends follows the sample...
Linux Distros Unpatched Vulnerability : CVE-2026-87081
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Net::IDN::UTS46 versions before 2.590 for Perl allow CPU exhaustion via quadratic punycode encoding of an overlong label before the length check in toascii...
CVE-2026-87081
Net::IDN::UTS46 versions before 2.590 for Perl allow CPU exhaustion via quadratic punycode encoding of an overlong label before the length check in toascii. toascii punycode encodes each label and only then applies the 63-byte DNS limit. encodepunycode in both backends follows the sample...
CVE-2026-87082
Net::IDN::Punycode versions before 2.590 for Perl hang, crash or return a wrong label via unvalidated malformed UTF-8 in encodepunycode. Neither backend checks that its input is well-formed UTF-8, so a string with the UTF-8 flag set over malformed bytes, as the :utf8 PerlIO layer produces from an...
PT-2026-96671
Name of the Vulnerable Software and Affected Versions Net::IDN::Punycode::PP versions prior to 2.590 Description The decode punycode function in the pure-Perl decoder incorrectly handles truncated labels. The decoder uses a four-argument substr to read digits and checks the result with defined to...
CVE-2026-87082: Loop with Unreachable Exit Condition
Net::IDN::Punycode versions before 2.590 for Perl hang, crash or return a wrong label via unvalidated malformed UTF-8 in encodepunycode. Neither backend checks that its input is well-formed UTF-8, so a string with the UTF-8 flag set over malformed bytes, as the :utf8 PerlIO layer produces from an...
CVE-2026-87079: Inefficient Algorithmic Complexity
Net::IDN::Punycode versions before 2.590 for Perl allow CPU exhaustion via quadratic insertion cost when decoding a long label in decodepunycode. The XS backend inserts each decoded code point into a UTF-8 buffer and finds the insertion point by scanning that buffer from the start, one character ...
CVE-2026-87078: Missing Release of Memory after Effective Lifetime
Net::IDN::Punycode versions from 2.302 before 2.590 for Perl leak the output buffer on every rejected label in decodepunycode. The XS backend allocates the scalar it returns before it validates the input, sizing the buffer at twice the input length. The scalar is released only on the success path...
CVE-2026-87080: Improper Validation of Syntactic Correctness of Input
Net::IDN::Punycode::PP versions before 2.590 for Perl decode a truncated label to a name containing a character it never encoded in decodepunycode. The pure-Perl decoder reads one digit at a time with four-argument substr and tests the result with defined to detect the end of the input. substr on...