CVE-2026-8450HTTP::Daemon versions before 6.17 for Perl allow OS command injection via send_file()
Updated under an hour ago ()
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It affects OALDERS HTTP::Daemon and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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HTTP::Daemon versions before 6.17 for Perl allow OS command injection via send_file(). send_file() opens its string argument with Perl's 2-arg open(). The 2-arg form interprets magic prefixes: '| cmd' and 'cmd |' open a pipe to a subprocess, '> path' and '>> path' open the path for write or append. Untrusted input passed to send_file() can run OS commands at the daemon process UID. The read-pipe form ('cmd |') also leaks subprocess stdout into the HTTP response body. The write-mode forms can create or truncate files at attacker chosen paths.
- CVSS
- 9.1 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-78, CWE-73
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- CPANSec
- NVD analysis
- Deferred
- Record last updated
- Jul 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OALDERS HTTP::Daemon oalders:http_daemon (from the name) | before 6.17 | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:6.16-7.el10_2.1 not affected | CISA ADP |
References
- https://github.com/libwww-perl/HTTP-Daemon/pull/89issue-tracking
- https://github.com/libwww-perl/HTTP-Daemon/commit/945d35141d94490f749640bd4390acd6a2193995.patchpatch
- https://metacpan.org/release/OALDERS/HTTP-Daemon-6.17/changesrelease-notes
- http://www.openwall.com/lists/oss-security/2026/05/27/5
- https://lists.debian.org/debian-lts-announce/2026/06/msg00028.html
- https://access.redhat.com/errata/RHSA-2026:36187
- https://access.redhat.com/errata/RHSA-2026:36188
- https://access.redhat.com/errata/RHSA-2026:36189
- https://access.redhat.com/security/cve/CVE-2026-8450
- https://bugzilla.redhat.com/show_bug.cgi?id=2481773
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8450.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.