CVE-2021-32917 json
An issue was discovered in Prosody before 0.11.9.
published 2021-05-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-19639
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- prosody prosody 0.11.9
- prosody Debian 14, Debian 13, Debian 12 0.11.9-1
debian advisories DEBIAN-CVE-2021-32917
- prosody openSUSE Tumbleweed 0.11.10-1.2
- prosody Package Hub 15 SP2 0.11.9-bp152.2.3.1
- prosody openSUSE Leap 15.2 0.11.9-lp152.2.3.1
opensuse advisories openSUSE-SU-2024:11197-1openSUSE-SU-2021:0751-1openSUSE-SU-2021:0728-1
- prosody Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 0.11.9-r0
alpine advisories ALPINE-CVE-2021-32917
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- prosody Arch Linux 1:0.11.9-1
arch linux advisories AVG-1955
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2021-32917 updated cvss 3.7
prosody: use of mod_proxy65 is unrestricted in default configuration
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
2.16% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
debian.org
/security/2021/dsa-4916
vendor-advisory, third-party-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
vendor-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/
vendor-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
vendor-advisory
-
blog.prosody.im
/prosody-0.11.9-released/
release-notes, vendor-advisory
-
openwall.com
/lists/oss-security/2021/05/13/1
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2021/05/14/2
mailing-list, mitigation, third-party-advisory
-
security.gentoo.org
/glsa/202105-15
third-party-advisory
-
lists.debian.org
/debian-lts-announce/2021/06/msg00016.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2021-32917
- NVD CVE-2021-32917
Fencer Vulns 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.