Vulnerability in Apache Http_server
CVE-2021-30641
Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'
EPSS: 0.523 (98.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Apache Http_server
- Apache Software Foundation Http Server — versions 2.4.46, 2.4.43, 2.4.41
- Oracle Enterprise_manager_ops_center — versions 12.4.0.0
- Oracle Instantis_enterprisetrack — versions 17.1, 17.2, 17.3
- Oracle Zfs_storage_appliance_kit — versions 8.8
- Debian Debian_linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 34, 35
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_MISC, Vendor Advisory)
- security@apache.org (Mailing List, x_refsource_MISC, Release Notes, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@apache.org (x_refsource_FEDORA, vendor-advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2021-30641?
- CVE-2021-30641 is a medium-severity vulnerability in Apache Http_server. CVSS score: 5.3/10. Published 2021-06-10.
- How severe is CVE-2021-30641?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-30641 known to be exploited?
- 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.