CVE-2015-7576
The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication…
- 3.7LowCVSS base score
- 4.9%Exploitation in 30 daysEPSS · top 7.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences.
Timeline
ID reserved
By redhat
- 5 months later
· 5 months later
Published
- 8 years later
· 8 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 | 3.0 | Low3.7 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 4.9% · top 7.9% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.7.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- RubyGemsactionpackGHSA-p692-7mm3-3fxg (opens in a new tab)
References
13
- [oss-security] 20160125 [CVE-2015-7576] Timing attack vulnerability in basic authentication in Action Controller. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2016-3ede04cd79 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2016:0372 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2016:0363 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2016-94e71ee673 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 81803 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2016-f486068393 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- SUSE-SU-2016:1146 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 1034816 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- DSA-3464 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2016:0296 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- FEDORA-2016-cb30088b06 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [ruby-security-ann] 20160125 [CVE-2015-7576] Timing attack vulnerability in basic authentication in Action Controller. (opens in a new tab)mailing-listx_refsource_MLISTx_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)
- EUVD EUVD-2017-0280 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-p692-7mm3-3fxg (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-7576)Record last updated .