Upstream information
Description
Path Equivalence vulnerability in Erlang/OTP inets httpd allows a remote unauthenticated attacker to read files inside a mod_auth protected directory by prefixing the request path with an extra slash.httpd_request:validate_uri/1 normalises the request URI with uri_string:normalize/1, which performs RFC 3986 dot-segment removal but does not collapse empty path segments, so a doubled slash survives. mod_alias:real_name/3 concatenates the document root with that URI, and mod_auth:secret_path/3 then decides whether the result lies inside a protected directory block by running the configured directory path as an unanchored regular expression against it. The doubled slash breaks the contiguous substring the regex needs, so the request is treated as unprotected and no authentication challenge is issued, while mod_get opens the same path and the operating system collapses the doubled slash and returns the protected file. The same path mismatch also evades the per-path accounting in mod_security.
This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (6b3ad84c-e1a6-4bf7-a703-f496b71e49db) | SUSE |
|---|---|---|
| Base Score | 8.2 | 8.2 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Attack Requirements | Present | Present |
| Privileges Required | None | None |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | High | High |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | None | None |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | erlang | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | erlang26 | Affected |
| SUSE Linux Enterprise Server 15 SP7 | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP7 | erlang26 | Affected |
| SUSE Linux Enterprise Server 16.0 | erlang | Affected |
| SUSE Linux Enterprise Server 16.1 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | erlang26 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | erlang | Affected |
| openSUSE Leap 16.0 | erlang | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | erlang | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | erlang | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | erlang | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | erlang | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | erlang26 | Affected |
| SUSE Linux Enterprise Server 15 SP4 | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP5 | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP6 | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP6 | erlang26 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | erlang26 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | erlang26 | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7 | erlang | Affected |
| SUSE Enterprise Storage 7.1 | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | erlang | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | erlang | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | erlang | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | erlang | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | erlang | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | erlang | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP2 | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP3 | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | erlang | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | erlang | Affected |
| SUSE Manager Proxy 4.1 | erlang | Affected |
| SUSE Manager Proxy 4.2 | erlang | Affected |
| SUSE Manager Proxy 4.3 | erlang | Affected |
| SUSE Manager Proxy LTS 4.3 | erlang | Affected |
| SUSE Manager Retail Branch Server 4.1 | erlang | Affected |
| SUSE Manager Retail Branch Server 4.2 | erlang | Affected |
| SUSE Manager Retail Branch Server 4.3 | erlang | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | erlang | Affected |
| SUSE Manager Server 4.1 | erlang | Affected |
| SUSE Manager Server 4.2 | erlang | Affected |
| SUSE Manager Server 4.3 | erlang | Affected |
| SUSE Manager Server LTS 4.3 | erlang | Affected |
| openSUSE Leap 15.3 | erlang | Affected |
| openSUSE Leap 15.4 | erlang | Affected |
| openSUSE Leap 15.5 | erlang | Affected |
| openSUSE Leap 15.6 | erlang | Affected |
| openSUSE Leap 15.6 | erlang26 | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Sep 2 12:14:32 2026CVE page last modified: Wed Sep 2 17:12:23 2026