CVE detail
CVE-2026-28808
Incorrect Authorization vulnerability in Erlang OTP (inets modules) allows unauthenticated access to CGI scripts protected by directory rules when served via script_alias. When script_alias maps a URL prefix to a directory outside DocumentRoot, mod_auth evaluates directory-based access controls against the DocumentRoot-relative path while mod_cgi executes the script at the ScriptAlias-resolved path. This path mismatch allows unauthenticated access to CGI scripts that directory rules were meant to protect. This vulnerability is associated with program files lib/inets/src/http_server/mod_alias.erl, lib/inets/src/http_server/mod_auth.erl, and lib/inets/src/http_server/mod_cgi.erl. This issue affects OTP from OTP 17.0 before OTP 28.4.2, OTP 27.3.4.10 and OTP 26.2.5.19, corresponding to inets from 5.10 before 9.6.2, 9.3.2.4 and 9.1.0.6.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 24.0 · diversity 20.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
10 source links · newest first
- CVE-2026-28808 ScriptAlias CGI targets bypass directory auth in inets httpd (mod_auth vs mod_cgi path mismatch)Microsoft MSRC
Information published.
vendormsrc.microsoft.comMay 19, 2026, 8:39 AM - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28808.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comApr 7, 2026, 1:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2455909bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comApr 7, 2026, 1:16 PM - https://access.redhat.com/security/cve/CVE-2026-28808access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 7, 2026, 1:16 PM No excerpt available.
Vendor Advisorywww.erlang.orgApr 7, 2026, 1:16 PMNo excerpt available.
Exploitosv.devApr 7, 2026, 1:16 PMNo excerpt available.
Exploitgithub.comApr 7, 2026, 1:16 PMNo excerpt available.
Exploitgithub.comApr 7, 2026, 1:16 PMNo excerpt available.
Exploitgithub.comApr 7, 2026, 1:16 PM- https://cna.erlef.org/cves/CVE-2026-28808.htmlcna.erlef.org
No excerpt available.
Vendor Advisorycna.erlef.orgApr 7, 2026, 1:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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