Security readout for executives and security teams
This affects Apache HTTP Server deployments that use the non-default-looking configuration named MergeSlashes OFF. In affected versions, URLs may match differently than administrators expect, which can undermine route or access assumptions. The bundle provides no CVSS score, no KEV listing, and no active exploitation evidence. Exposure is likely limited to Apache HTTP Server 2.4.39-2.4.46 instances where MergeSlashes is configured OFF. Internet-facing reverse proxies, application front ends, and sites with path-based authorization deserve priority review. Treat this as a targeted configuration-dependent Apache update, not a confirmed mass-exploitation emergency. Prioritize systems running affected versions with MergeSlashes OFF, especially public web tiers that enforce access decisions by URL path. Mitigation focus: Apply Apache HTTP Server security updates from Apache or your OS vendor.; Upgrade or patch affected 2.4.39 through 2.4.46 deployments.; Review configurations using MergeSlashes OFF and confirm vendor guidance before changing behavior..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2021-30641 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3ECVE reference · x_refsource_MISC
- [httpd-announce] 20210609 CVE-2021-30641: Unexpected URL matching with 'MergeSlashes OFF'CVE reference · mailing-list, x_refsource_MLIST
- [httpd-dev] 20210610 Re: svn commit: r1890598 - in /httpd/site/trunk/content/security/json: CVE-2019-17567.json CVE-2020-13938.json CVE-2020-13950.json CVE-2020-35452.json CVE-2021-26690.json CVE-2021-26691.json CVE-2021-30641.json CVE-2021-31618.jsonCVE reference · mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20210709 [SECURITY] [DLA 2706-1] apache2 security updateCVE reference · mailing-list, x_refsource_MLIST
- DSA-4937CVE reference · vendor-advisory, x_refsource_DEBIAN
- GLSA-202107-38CVE reference · vendor-advisory, x_refsource_GENTOO
- FEDORA-2021-dce7e7738eCVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-e3f6dd670dCVE reference · vendor-advisory, x_refsource_FEDORA
- https://www.oracle.com/security-alerts/cpuoct2021.htmlCVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210702-0001/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.