CVE-2021-32917
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.
Does this matter?
Lower severity and a low EPSS score (2.16%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 2.16% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- prosody/prosody · debian/debian linux · fedoraproject/fedora
- Source
- cve@mitre.org
EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2021/05/13/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/14/2Mailing List, Mitigation, Third Party Advisory
- https://blog.prosody.im/prosody-0.11.9-released/Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00016.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/
- https://security.gentoo.org/glsa/202105-15Third Party Advisory
- https://www.debian.org/security/2021/dsa-4916Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/13/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/14/2Mailing List, Mitigation, Third Party Advisory
- https://blog.prosody.im/prosody-0.11.9-released/Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00016.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/
- https://security.gentoo.org/glsa/202105-15Third Party Advisory
- https://www.debian.org/security/2021/dsa-4916Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.