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6 vulnerabilities by dahlia
CVE-2026-54511 (GCVE-0-2026-54511)
Vulnerability from nvd – Published: 2026-08-26 14:27 – Updated: 2026-08-27 14:33
VLAI
EPSS
VEX
Title
@logtape/syslog: syslog log injection via unescaped control characters and unvalidated SD-NAME keys
Summary
LogTape is an unobtrusive logging library. Prior to 1.3.11, 2.0.14, and 2.1.5, the @logtape/syslog package's escapeStructuredDataValue() function in packages/syslog/src/syslog.ts does not neutralize C0 control characters from U+0000 through U+001F in structured data values, and formatStructuredData() inserts property keys without validating the RFC 5424 SD-NAME grammar. When includeStructuredData is true, an attacker-controlled newline can terminate an RFC 6587 non-transparent TCP syslog frame and make following bytes appear as a forged RFC 5424 record, while a key containing a closing bracket or other forbidden character can terminate or corrupt the structured-data element. Applications that forward attacker-controlled property values or keys can therefore allow forged records with arbitrary hosts, applications, process identifiers, facilities, or severity levels, undermining downstream collector and SIEM integrity. This issue is fixed in versions 1.3.11, 2.0.14, and 2.1.5.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 13:55 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/dahlia/logtape/security/adviso… | x_refsource_CONFIRM |
| https://github.com/dahlia/logtape/commit/7a6e5b9d… | x_refsource_MISC |
| https://github.com/dahlia/logtape/releases/tag/1.3.11 | x_refsource_MISC |
| https://github.com/dahlia/logtape/releases/tag/2.0.14 | x_refsource_MISC |
| https://github.com/dahlia/logtape/releases/tag/2.1.5 | x_refsource_MISC |
Impacted products
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CVE-2025-23221 (GCVE-0-2025-23221)
Vulnerability from nvd – Published: 2025-01-20 16:49 – Updated: 2025-01-21 14:49
VLAI
EPSS
VEX
Title
Fedify has an Infinite loop and Blind SSRF found inside the Webfinger mechanism
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. This vulnerability allows a user to maneuver the Webfinger mechanism to perform a GET request to any internal resource on any Host, Port, URL combination regardless of present security mechanisms, and forcing the victim’s server into an infinite loop causing Denial of Service. Moreover, this issue can also be maneuvered into performing a Blind SSRF attack. This vulnerability is fixed in 1.0.14, 1.1.11, 1.2.11, and 1.3.4.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-21 14:49 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/dahlia/fedify/security/advisor… | x_refsource_CONFIRM |
| https://github.com/dahlia/fedify/commit/8be3c2038… | x_refsource_MISC |
| https://github.com/dahlia/fedify/commit/c505eb82f… | x_refsource_MISC |
| https://github.com/dahlia/fedify/commit/e921134dd… | x_refsource_MISC |
Impacted products
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CVE-2024-39687 (GCVE-0-2024-39687)
Vulnerability from nvd – Published: 2024-07-05 17:39 – Updated: 2024-08-02 04:26
VLAI
EPSS
VEX
Title
Fedify vulnerable to allowing access to internal network resources
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. At present, when Fedify needs to retrieve an object or activity from a remote activitypub server, it makes a HTTP request to the `@id` or other resources present within the activity it has received from the web. This activity could reference an `@id` that points to an internal IP address, allowing an attacker to send request to resources internal to the fedify server's network. This applies to not just resolution of documents containing activities or objects, but also to media URLs as well. Specifically this is a Server Side Request Forgery attack. Users should upgrade to Fedify version 0.9.2, 0.10.1, or 0.11.1 to receive a patch for this issue.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-08 15:48 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/dahlia/fedify/security/advisor… | x_refsource_CONFIRM |
| https://github.com/dahlia/fedify/commit/30f9cf4a1… | x_refsource_MISC |
| https://github.com/dahlia/fedify/commit/c641e9760… | x_refsource_MISC |
Impacted products
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CVE-2026-54511 (GCVE-0-2026-54511)
Vulnerability from cvelistv5 – Published: 2026-08-26 14:27 – Updated: 2026-08-27 14:33
VLAI
EPSS
VEX
Title
@logtape/syslog: syslog log injection via unescaped control characters and unvalidated SD-NAME keys
Summary
LogTape is an unobtrusive logging library. Prior to 1.3.11, 2.0.14, and 2.1.5, the @logtape/syslog package's escapeStructuredDataValue() function in packages/syslog/src/syslog.ts does not neutralize C0 control characters from U+0000 through U+001F in structured data values, and formatStructuredData() inserts property keys without validating the RFC 5424 SD-NAME grammar. When includeStructuredData is true, an attacker-controlled newline can terminate an RFC 6587 non-transparent TCP syslog frame and make following bytes appear as a forged RFC 5424 record, while a key containing a closing bracket or other forbidden character can terminate or corrupt the structured-data element. Applications that forward attacker-controlled property values or keys can therefore allow forged records with arbitrary hosts, applications, process identifiers, facilities, or severity levels, undermining downstream collector and SIEM integrity. This issue is fixed in versions 1.3.11, 2.0.14, and 2.1.5.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 13:55 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/dahlia/logtape/security/adviso… | x_refsource_CONFIRM |
| https://github.com/dahlia/logtape/commit/7a6e5b9d… | x_refsource_MISC |
| https://github.com/dahlia/logtape/releases/tag/1.3.11 | x_refsource_MISC |
| https://github.com/dahlia/logtape/releases/tag/2.0.14 | x_refsource_MISC |
| https://github.com/dahlia/logtape/releases/tag/2.1.5 | x_refsource_MISC |
Impacted products
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CVE-2025-23221 (GCVE-0-2025-23221)
Vulnerability from cvelistv5 – Published: 2025-01-20 16:49 – Updated: 2025-01-21 14:49
VLAI
EPSS
VEX
Title
Fedify has an Infinite loop and Blind SSRF found inside the Webfinger mechanism
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. This vulnerability allows a user to maneuver the Webfinger mechanism to perform a GET request to any internal resource on any Host, Port, URL combination regardless of present security mechanisms, and forcing the victim’s server into an infinite loop causing Denial of Service. Moreover, this issue can also be maneuvered into performing a Blind SSRF attack. This vulnerability is fixed in 1.0.14, 1.1.11, 1.2.11, and 1.3.4.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-21 14:49 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/dahlia/fedify/security/advisor… | x_refsource_CONFIRM |
| https://github.com/dahlia/fedify/commit/8be3c2038… | x_refsource_MISC |
| https://github.com/dahlia/fedify/commit/c505eb82f… | x_refsource_MISC |
| https://github.com/dahlia/fedify/commit/e921134dd… | x_refsource_MISC |
Impacted products
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CVE-2024-39687 (GCVE-0-2024-39687)
Vulnerability from cvelistv5 – Published: 2024-07-05 17:39 – Updated: 2024-08-02 04:26
VLAI
EPSS
VEX
Title
Fedify vulnerable to allowing access to internal network resources
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. At present, when Fedify needs to retrieve an object or activity from a remote activitypub server, it makes a HTTP request to the `@id` or other resources present within the activity it has received from the web. This activity could reference an `@id` that points to an internal IP address, allowing an attacker to send request to resources internal to the fedify server's network. This applies to not just resolution of documents containing activities or objects, but also to media URLs as well. Specifically this is a Server Side Request Forgery attack. Users should upgrade to Fedify version 0.9.2, 0.10.1, or 0.11.1 to receive a patch for this issue.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-08 15:48 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/dahlia/fedify/security/advisor… | x_refsource_CONFIRM |
| https://github.com/dahlia/fedify/commit/30f9cf4a1… | x_refsource_MISC |
| https://github.com/dahlia/fedify/commit/c641e9760… | x_refsource_MISC |
Impacted products
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