CVE-2018-25160 json
HTTP::Session2 versions through 1.09 for Perl does not validate the format of user provided session ids, enabling code injection or other impact depending on session backend
published 2026-02-27 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2018-21615
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
HTTP::Session2 versions through 1.09 for Perl does not validate the format of user provided session ids, enabling code injection or other impact depending on session backend.
For example, if an application uses memcached for session storage, then it may be possible for a remote attacker to inject memcached commands in the session id value.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected products
- TOKUHIROM HTTP::Session2
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
github.com
/tokuhirom/HTTP-Session2/commit/813838f6d08034b6a265a70e53b59b941b5d3e6d.patch
patch
-
metacpan.org
/release/TOKUHIROM/HTTP-Session2-1.10/source/Changes
release-notes, product
-
metacpan.org
/pod/Cache::Memcached::Fast::Safe
related, third-party-advisory
-
openwall.com
/lists/oss-security/2026/02/27/13
mailing-list, third-party-advisory
Sources
- CVE List CVE-2018-25160
- NVD CVE-2018-25160
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.