Resource exhaustion in Apache Poi
CVE-2022-26336
A shortcoming in the HMEF package of poi-scratchpad (Apache POI) allows an attacker to cause an Out of Memory exception. This package is used to read TNEF files (Microsoft Outlook and Microsoft Exchange Server). If an application uses poi-scratchpad to parse TNEF files and the application allows untrusted users to supply them, then a carefully crafted file can cause an Out of Memory exception. This issue affects poi-scratchpad version 5.2.0 and prior versions. Users are recommended to upgrade to poi-scratchpad 5.2.1.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.015 (73.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Apache Poi
- Apache Software Foundation Poi-scratchpad — versions unspecified
- Netapp Active_iq_unified_manager
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (Mailing List, Vendor Advisory)
- security@apache.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-26336?
- CVE-2022-26336 is a medium-severity vulnerability in Apache Poi, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2022-03-04.
- How severe is CVE-2022-26336?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-26336 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.