DEBIAN-CVE-2026-10725
Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the "HTTP/2 bomb"). The headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded. MAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode. It is absent from the decoder and from the :limits export tag.
DEBIAN-CVE-2026-10725
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-10725
libprotocol-http2-perl
Source reference: /affected/0/package/name
- Affected versions
- 1.10-2
Source reference:
/affected/0/versions1.10-3Source reference:
/affected/0/versions1.11-1Source reference:
/affected/0/versions1.12-1Source reference:
/affected/0/versions1.12-2Source reference:
/affected/0/versions1.13-1Source reference:
/affected/0/versions1.14-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libprotocol-http2-perl
Source reference: /affected/1/package/name
- Affected versions
- 1.11-1
Source reference:
/affected/1/versions1.12-1Source reference:
/affected/1/versions1.12-2Source reference:
/affected/1/versions1.13-1Source reference:
/affected/1/versions1.14-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libprotocol-http2-perl
Source reference: /affected/2/package/name
- Affected versions
- 1.11-1
Source reference:
/affected/2/versions1.12-1Source reference:
/affected/2/versions - Fixed versions
- 1.12-2
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libprotocol-http2-perl",
"purl": "pkg:deb/debian/libprotocol-http2-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.10-2",
"1.10-3",
"1.11-1",
"1.12-1",
"1.12-2",
"1.13-1",
"1.14-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10725.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libprotocol-http2-perl",
"purl": "pkg:deb/debian/libprotocol-http2-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.11-1",
"1.12-1",
"1.12-2",
"1.13-1",
"1.14-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10725.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12-2"
}
]
}
],
"package": {
"name": "libprotocol-http2-perl",
"purl": "pkg:deb/debian/libprotocol-http2-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.11-1",
"1.12-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10725.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55440 · Revision 1
- Added to Heist Feed
- Publisher date