CVE-2026-49249

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Source
https://cve.org/CVERecord?id=CVE-2026-49249
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49249.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-49249
Aliases
  • GHSA-q428-ch8m-94gg
Published
2026-09-02T17:28:32Z
Modified
2026-09-11T03:31:01Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Boruta: Authenticated atom-exhaustion DoS in BorutaIdentityWeb.UserSettingsController.update/2
Details

Boruta is a standalone authorization server that aims to implement OAuth 2.0 and Openid Connect up to decentralized identity specifications. Prior to version 0.10.0, BorutaIdentityWeb.UserSettingsController.update/2 atomizes every key of the user-supplied request body via String.to_atom/1 before any validation. Because String.to_atom interns atoms permanently in the BEAM atom table (default cap 1,048,576 atoms; ERL_MAX_ATOMS), any authenticated end user can send PUT /users/settings with a user[]=... body containing fresh keys per request and exhaust the global VM atom table. Once the table is full, the BEAM aborts with no more index entries in atom_tab and the entire OIDC server (auth, admin, gateway apps in the umbrella) crashes. The route is protected only by require_authenticated_user and a per-IP rate limit of 10 requests/second; a logged-in end user can hit it. The keys are atomized unconditionally before the downstream Accounts.update_user/6 call, so even failing updates contribute to exhaustion. This issue has been patched in version 0.10.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-400",
        "CWE-770"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49249.json"
}
References

Affected packages

Git / github.com/malach-it/boruta-server

Affected ranges

Type
GIT
Repo
https://github.com/malach-it/boruta-server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6636da08934cd4aea5e19a0147b9e111a6fb3635
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "0.10.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.6.0
0.6.1
0.7.0
0.7.1
0.7.2
0.8.0
0.9.0
0.9.1
0.9.2
Other
Initial

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49249.json"