Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Net::IP::LPM versions before 1.11 for Perl allow a heap out-of-bounds read via an unbounded prefix length. add() passes the prefix string to the trie builder addPrefixToTrie() without checking it against the address width. addPrefixToTrie() then walks the prefix buffer by prefix_length bits, reading prefix[byte] for byte up to prefix_len/8, where prefix is the 4-byte (IPv4) or 16-byte (IPv6) packed address. A prefix length greater than 32 for IPv4 or 128 for IPv6, for example add("1.2.3.4/255", $v) or add("2001:db8::/255", $v), reads past the end of the packed address. The out-of-bounds read happens during trie construction and is bounded: the prefix length is stored as an unsigned char, so the bit walk reads at most 32 bytes from the start of the packed address, a short distance past the end of the 4-byte or 16-byte buffer. It is detectable under AddressSanitizer, valgrind, or a hardened allocator, where it can abort the process. Lookups and dump() format only the valid address width, so the out-of-bounds bytes are not exposed through the module's API.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-07-03 | 2 | Disclosure2 |
| 2026-07-05 | 1 | Disclosure1 |
Perl CPAN CVE-2026-56015: Net::IP::LPM through 1.10 allow a heap out-of-bounds read via an unbounded prefix length https://www.openwall.com/lists/oss-security/2026/07/03/4
Post summary
The message announces CVE-2026-56015, detailing a heap out-of-bounds read in Net::IP::LPM, but nothing is stated about PoC, exploitation, or mitigation.
CVE-2026-56015 Net::IP::LPM versions through 1.10 for Perl allow a heap out-of-bounds read via an unbounded prefix length. add() passes the prefix string to the trie builder addPre… https://www.cve.org/CVERecord?id=CVE-2026-56015
Post summary
The post reports CVE‑2026‑56015 as a heap out‑of‑bounds read vulnerability in Net::IP::LPM up to version 1.10, referencing the CVE record. No proof of concept, exploit, patch, or activity claim is provided.
🚨*CVE* CVE-2026-56015 Net::IP::LPM versions through 1.10 for Perl allow a heap out-of-bounds read via an unbounded prefix length. add() passes the prefix string to the trie builder addPre… https://www.cve.org/CVERecord?id=CVE-2026-56015 ----- Traducción: CVE-2026-56015 Net… http://infoflow.cloud`
Post summary
The tweet announces CVE-2026-56015, describing a heap out‑of‑bounds read in Net::IP::LPM caused by an unbounded prefix length, but provides no PoC, exploit, or fix details.