CVE-2026-34148

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Source
https://cve.org/CVERecord?id=CVE-2026-34148
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34148.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34148
Aliases
Published
2026-04-06T15:06:53Z
Modified
2026-10-28T02:30:28Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Fedify affected by resource exhaustion caused by unbounded redirect following during remote key/document resolution
Details

Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to 1.9.6, 1.10.5, 2.0.8, and 2.1.1, @fedify/fedify follows HTTP redirects recursively in its remote document loader and authenticated document loader without enforcing a maximum redirect count or visited-URL loop detection. An attacker who controls a remote ActivityPub key or actor URL can force a server using Fedify to make repeated outbound requests from a single inbound request, leading to resource consumption and denial of service. This vulnerability is fixed in 1.9.6, 1.10.5, 2.0.8, and 2.1.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-400",
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34148.json"
}
References

Affected packages

Git / github.com/fedify-dev/fedify

Affected ranges

Type
GIT
Repo
https://github.com/fedify-dev/fedify
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
06f2599a8c2ff25e5b2866f621ca83fc3f666bef
Fixed
52ad697cf62f24366b0fcb42fc9d1d5fba5039a0
Introduced
e4277717b0cad40c6282aae3dd14d4016cda45af
Fixed
bb78342e9aa634da59558f6bfe0f028c0525dc41
Introduced
9568bcde77d3f1df90e2a790f5ff81b5bc787c5d
Fixed
52ad697cf62f24366b0fcb42fc9d1d5fba5039a0
Introduced
49bfb3679ceaf3c20e4029033d19aed6f5cd9d0c
Fixed
1c7dab5649672a0db380711f3161469e660389f2
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.9.6"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:fedify:fedify\\/vocab-runtime:*:*:*:*:*:node.js:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.0.8"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*",
            "range": [
                {
                    "introduced": "1.10.0"
                },
                {
                    "fixed": "1.10.5"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*",
            "range": [
                {
                    "introduced": "2.0.0"
                },
                {
                    "fixed": "2.0.8"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*",
            "range": [
                {
                    "introduced": "2.1.0"
                },
                {
                    "fixed": "2.1.1"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:fedify:fedify\\/vocab-runtime:*:*:*:*:*:node.js:*:*",
            "range": [
                {
                    "introduced": "2.1.0"
                },
                {
                    "fixed": "2.1.1"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "original_tag": "1.10.5",
            "range": [
                {
                    "fixed": "bb78342e9aa634da59558f6bfe0f028c0525dc41"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "1.9.6",
            "range": [
                {
                    "fixed": "06f2599a8c2ff25e5b2866f621ca83fc3f666bef"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "2.0.8",
            "range": [
                {
                    "fixed": "52ad697cf62f24366b0fcb42fc9d1d5fba5039a0"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "2.1.1",
            "range": [
                {
                    "fixed": "1c7dab5649672a0db380711f3161469e660389f2"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.1.0
0.10.0
0.11.0
0.12.0
0.13.0
0.14.0
0.15.0
0.2.0
0.3.0
0.4.0
0.5.0
0.6.0
0.7.0
0.8.0
0.9.0
1.*
1.0.0
1.1.0
1.10.0
1.10.1
1.10.2
1.10.3
1.10.4
1.2.0
1.3.0
1.4.0
1.5.0
1.6.1
1.7.0
1.8.1
1.9.0
1.9.1
1.9.2
1.9.3
1.9.4
1.9.5
2.*
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34148.json"