Back
CVE-2020-1927
In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with mod_rewrite that were intended to be self-referential might be fooled by…
Medium6.1EPSS 56.7%
- Published
- Updated
- Reserved
- Assigned by
- apache
Description
In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL.
Timeline
ID reserved
By apache
- 4 months later
· 4 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 56.7% · top 0.9% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
Affected products
- affected 2.4.0 to 2.4.41
References (27)
- [oss-security] 20200403 Re: CVE-2020-1927: mod_rewrite configurations vulnerable to open redirect (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20200403 Re: CVE-2020-1927: mod_rewrite configurations vulnerable to open redirect (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-dev] 20200404 Odd vulnerabilities_24.html output (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-dev] 20200404 Re: Odd vulnerabilities_24.html output (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20200411 svn commit: r1876405 - in /httpd/test/framework/trunk/t: conf/core.conf.in security/CVE-2020-1927.t (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20200412 svn commit: r1876426 - /httpd/test/framework/trunk/t/security/CVE-2020-1927.t (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2020:0597 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://www.oracle.com/security-alerts/cpujul2020.html (opens in a new tab)x_refsource_MISCx_transferred
- https://httpd.apache.org/security/vulnerabilities_24.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://security.netapp.com/advisory/ntap-20200413-0002/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-4458-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2020-189a1e6c3e (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-4757 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- FEDORA-2020-0d3d3f5072 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1888194 [13/13] - /httpd/site/trunk/content/security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073139 [13/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073149 [13/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073158 - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-1927.json security/vulnerabilities_24.html (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1888215 - /httpd/site/trunk/content/security/json/CVE-2020-1927.json (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.oracle.com/security-alerts/cpuApr2021.html (opens in a new tab)x_refsource_MISCx_transferred
- [debian-lts-announce] 20210709 [SECURITY] [DLA 2706-1] apache2 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.oracle.com/security-alerts/cpujul2022.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-1927)Record last updated .