CVE-2026-43506

highpriority · track · 30EPSS 0.003 · 20 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (20th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by memory leaks from unauthenticated connections.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · cve@mitre.org USexploitability 3.9 · impact 1.4

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-401US

affected products (4)

Products and version ranges known to be affected.

Prosody prosody0 → 0.12.6enisa_euvdEU
Prosody prosody1.0.0 → 13.0.5enisa_euvdEU
prosody prosody< 0.12.6nvdUScpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*
prosody prosody13.0.0 → 13.0.5nvdUScpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2026-05-01modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

https://nvd.nist.gov/vuln/detail/CVE-2026-43506 cnnvd
https://prosody.im/download/Patchcnnvd
https://prosody.im/security/advisory_735dd9d3/enisa_euvd
https://www.openwall.com/lists/oss-security/2026/05/01/5 enisa_euvd
https://prosody.im/security/advisory_735dd9d3/MitigationPatchVendor Advisorynvd
https://www.openwall.com/lists/oss-security/2026/05/01/5Mailing ListPatchThird Party Advisorynvd

scry

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