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No exploitation reportedFix available

CVE-2021-32917

No exploitation reported by the sources we read.

  • Published2021-05-13
  • Fixed in0.11.9
  • WeaknessCWE-862

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in Prosody before 0.11.9. The proxy65 component allows open access by default, even if neither of the users has an XMPP account on the local server, allowing unrestricted use of the server's bandwidth.

Timeline

dates in UTC
  1. 2021-05-1316:15CVE publishedNVD

Versions per branch

NVD
Prosody
BranchAffectedFixed in
0.11< 0.11.90.11.9
Fedoraproject fedora
BranchAffectedFixed in
32.x= 32no fix published
33.x= 33no fix published
34.x= 34no fix published
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
10.0= 10.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • prosodyUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • prosodyUbuntu:22.04:LTSall versions · no fixed version listed
  • prosodyUbuntu:20.04:LTSall versions · no fixed version listed
  • prosodyUbuntu:16.04:LTSall versions · no fixed version listed
  • prosodySUSE:Package Hub 15 SP2all versions · fixed in 0.11.9-bp152.2.3.1
  • prosodyopenSUSE:Tumbleweedall versions · fixed in 0.11.10-1.2
  • prosodyopenSUSE:Leap 15.2all versions · fixed in 0.11.9-lp152.2.3.1
  • prosodyDebian:14all versions · fixed in 0.11.9-1

18 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Prosody to 0.11.9

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published
2021-05-13
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-75h4-f9wm-hqpr

Frequently asked questions

What is CVE-2021-32917?

An issue was discovered in Prosody before 0.11.9. The proxy65 component allows open access by default, even if neither of the users has an XMPP account on the local server, allowing unrestricted use of the server's bandwidth.

Is CVE-2021-32917 actively exploited?

Active exploitation of CVE-2021-32917 has not been confirmed. Its EPSS score was 2.2% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-32917?

CVE-2021-32917 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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Sources for this record