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CVE-2016-0756
The generate_dialback function in the mod_dialback module in Prosody before 0.9.10 does not properly separate fields when generating…
Medium5.3EPSS 2.1%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The generate_dialback function in the mod_dialback module in Prosody before 0.9.10 does not properly separate fields when generating dialback keys, which allows remote attackers to spoof XMPP network domains via a crafted stream id and domain name that is included in the target domain as a suffix.
Timeline
ID reserved
By redhat
- 44 days later
· 44 days later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 2.1% · top 19% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
n/a
- affected n/a
References (8)
- FEDORA-2016-e2c5111eda (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 82241 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2016-5a5c85c5a8 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://prosody.im/issues/issue/596 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20160127 CVE-2016-0756: Prosody XMPP server: insecure dialback key generation/validation algorithm (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://blog.prosody.im/prosody-0-9-10-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3463 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://prosody.im/security/advisory_20160127/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2016-0756)Record last updated .