CVE Explorer
CVE-2026-27480
Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. In versions 2.1.0 through 2.40.1, a timing-based username enumeration vulnerability in Basic Authentication allows attackers to identify valid users by exploiting early responses for invalid usernames, enabling targeted brute-force or credential-stuffing attacks. SWS checks whether a username exists before verifying the password, causing valid usernames to follow a slower code path (e.g., bcrypt has
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"static-web-server","vendor":"static-web-server","versions":[{"status":"affected","version":">= 2.1.0, < 2.41.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:9549319f46df9ddca070def49a4cb1631dc595f3b40ba557e3636390889da2be · sha256:0ec04eee89fb57bb… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:9549319f46df9ddca070def49a4cb1631dc595f3b40ba557e3636390889da2be · sha256:0ec04eee89fb57bb… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-204","description":"CWE-204: Observable Response Discrepancy","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:9549319f46df9ddca070def49a4cb1631dc595f3b40ba557e3636390889da2be · sha256:0ec04eee89fb57bb… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/static-web-server/static-web-server/commit/7bf0fd425eb10dac9bf9ef5febce12c4dd039ce1","tags":["x_refsource_MISC"],"url":"https://github.com/static-web-server/static-web-server/commit/7bf0fd425eb10dac9bf9ef5febce12c4dd039ce1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:9549319f46df9ddca070def49a4cb1631dc595f3b40ba557e3636390889da2be · sha256:0ec04eee89fb57bb… · /containers/cna/references/1
{"name":"https://github.com/static-web-server/static-web-server/security/advisories/GHSA-qhp6-635j-x7r2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/static-web-server/static-web-server/security/advisories/GHSA-qhp6-635j-x7r2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:9549319f46df9ddca070def49a4cb1631dc595f3b40ba557e3636390889da2be · sha256:0ec04eee89fb57bb… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.