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Vulnerability Details :

CVE-2026-43505

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-01 May, 2026 | 14:42
Updated At-01 May, 2026 | 15:48
Rejected At-
Credits

An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5, when mod_proxy65 is enabled. Because mod_proxy65 mishandles access control in the activation scenario, relaying of unauthenticated traffic can occur.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:01 May, 2026 | 14:42
Updated At:01 May, 2026 | 15:48
Rejected At:
▼CVE Numbering Authority (CNA)

An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5, when mod_proxy65 is enabled. Because mod_proxy65 mishandles access control in the activation scenario, relaying of unauthenticated traffic can occur.

Affected Products
Vendor
Prosody
Product
Prosody
Default Status
unaffected
Versions
Affected
  • From 0 before 0.12.6 (semver)
  • From 1.0.0 before 13.0.5 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-420CWE-420 Unprotected Alternate Channel
Type: CWE
CWE ID: CWE-420
Description: CWE-420 Unprotected Alternate Channel
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.openwall.com/lists/oss-security/2026/05/01/5
N/A
https://prosody.im/security/advisory_735dd9d3/
N/A
Hyperlink: https://www.openwall.com/lists/oss-security/2026/05/01/5
Resource: N/A
Hyperlink: https://prosody.im/security/advisory_735dd9d3/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:01 May, 2026 | 15:16
Updated At:01 May, 2026 | 17:15

An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5, when mod_proxy65 is enabled. Because mod_proxy65 mishandles access control in the activation scenario, relaying of unauthenticated traffic can occur.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Type: Secondary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CPE Matches
prosody
prosody
>>prosody>>Versions before 0.12.6(exclusive)
cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*
prosody
prosody
>>prosody>>Versions from 13.0.0(inclusive) to 13.0.5(exclusive)
cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-420Primarycve@mitre.org
CWE ID: CWE-420
Type: Primary
Source: cve@mitre.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://prosody.im/security/advisory_735dd9d3/cve@mitre.org
Mitigation
Patch
Vendor Advisory
https://www.openwall.com/lists/oss-security/2026/05/01/5cve@mitre.org
Mailing List
Patch
Third Party Advisory
Hyperlink: https://prosody.im/security/advisory_735dd9d3/
Source: cve@mitre.org
Resource:
Mitigation
Patch
Vendor Advisory
Hyperlink: https://www.openwall.com/lists/oss-security/2026/05/01/5
Source: cve@mitre.org
Resource:
Mailing List
Patch
Third Party Advisory

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2026-43504
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.02% / 5.51%
||
7 Day CHG~0.00%
Published-01 May, 2026 | 14:40
Updated-01 May, 2026 | 17:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5, when mod_proxy65 is enabled. Because mod_proxy65 mishandles access control in a paused scenario, relaying of unauthenticated traffic can occur.

Action-Not Available
Vendor-prosodyProsody
Product-prosodyProsody
CWE ID-CWE-863
Incorrect Authorization
Details not found