CVE-2021-40865 in the critical feed json
Unsafe Pre-Authentication Deserialization In Workers
published 5y ago modified 4mo ago also GHSA-w729-7633-2fw5 , EUVD-2021-2262
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 64.2%
- EPSS 64.2% chance of exploitation in 30 days, percentile 99.2%
- public exploits
- 0
- none known
Summary
An Unsafe Deserialization vulnerability exists in the worker services of the Apache Storm supervisor server allowing pre-auth Remote Code Execution (RCE). Apache Storm 2.2.x users should upgrade to version 2.2.1 or 2.3.0. Apache Storm 2.1.x users should upgrade to version 2.1.1. Apache Storm 1.x users should upgrade to version 1.2.4
Patch / fix
- maven org.apache.storm:storm 1.2.4, 2.1.1, 2.2.1
- Apache Software Foundation Apache Storm v1.2.4, v2.1.1, v2.2.1, v2.3.0
Is CVE-2021-40865 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
64.18% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.storm:storm | >=2.2.0, <2.2.1 >=1.0.0, <1.2.4 >=2.1.0, <2.1.1 |
2.2.1 1.2.4 2.1.1 |
Affected products
- Apache Software Foundation Apache Storm
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
lists.apache.org
/thread.html/r8d45e74299897b6734dd0f788c46a631009ce2eeb731523386f7a253%40%3Cuser.storm.apache.org%3E
web, mailing-list, vendor-advisory
-
seclists.org
/oss-sec/2021/q4/45
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-40865
advisory
Sources
- CVE List CVE-2021-40865
- GitHub Advisory GHSA-w729-7633-2fw5
- NVD CVE-2021-40865
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.