CVE-2026-93960 (GCVE-0-2026-93960)
Vulnerability from cvelistv5 – Published: 2026-09-20 03:00 – Updated: 2026-09-20 03:00 X_Open Source
VLAI
EPSS
VEX
Title
Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication
Summary
A vulnerability was identified in Pixelfed up to 0.12.11. Impacted is the function instancePeers of the file app/Http/Controllers/Api/ApiV1Controller.php of the component OAuth Scope Handler. Such manipulation of the argument ID leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 0.12.10 is recommended to address this issue. The name of the patch is 68dca5097305fa0065d029587b2233524636025a. Upgrading the affected component is advised.
Severity
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/407919 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/407919/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-93960 | third-party-advisory |
| https://vuldb.com/submit/944207 | third-party-advisory |
| https://github.com/pixelfed/pixelfed/issues/6643 | exploitissue-tracking |
| https://github.com/pixelfed/pixelfed/pull/6774 | issue-trackingpatch |
| https://github.com/pixelfed/pixelfed/commit/68dca… | patch |
| https://github.com/pixelfed/pixelfed/releases/tag… | patch |
| https://github.com/pixelfed/pixelfed/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | Pixelfed |
Affected:
0.12.0
Affected: 0.12.1 Affected: 0.12.2 Affected: 0.12.3 Affected: 0.12.4 Affected: 0.12.5 Affected: 0.12.6 Affected: 0.12.7 Affected: 0.12.8 Affected: 0.12.9 Affected: 0.12.10 Affected: 0.12.11 Unaffected: 0.12.10 cpe:2.3:a:pixelfed:pixelfed:*:*:*:*:*:*:*:* |
{
"containers": {
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"affected": [
{
"cpes": [
"cpe:2.3:a:pixelfed:pixelfed:*:*:*:*:*:*:*:*"
],
"modules": [
"OAuth Scope Handler"
],
"product": "Pixelfed",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "0.12.0"
},
{
"status": "affected",
"version": "0.12.1"
},
{
"status": "affected",
"version": "0.12.2"
},
{
"status": "affected",
"version": "0.12.3"
},
{
"status": "affected",
"version": "0.12.4"
},
{
"status": "affected",
"version": "0.12.5"
},
{
"status": "affected",
"version": "0.12.6"
},
{
"status": "affected",
"version": "0.12.7"
},
{
"status": "affected",
"version": "0.12.8"
},
{
"status": "affected",
"version": "0.12.9"
},
{
"status": "affected",
"version": "0.12.10"
},
{
"status": "affected",
"version": "0.12.11"
},
{
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}
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"credits": [
{
"lang": "en",
"type": "reporter",
"value": "geochen (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was identified in Pixelfed up to 0.12.11. Impacted is the function instancePeers of the file app/Http/Controllers/Api/ApiV1Controller.php of the component OAuth Scope Handler. Such manipulation of the argument ID leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 0.12.10 is recommended to address this issue. The name of the patch is 68dca5097305fa0065d029587b2233524636025a. Upgrading the affected component is advised."
}
],
"metrics": [
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"providerMetadata": {
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},
{
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"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/407919/cti"
},
{
"name": "CVE-2026-93960 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-93960"
},
{
"name": "Submit #944207 | pixelfed commit f0ac4aa Missing Authentication",
"tags": [
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],
"url": "https://vuldb.com/submit/944207"
},
{
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"url": "https://github.com/pixelfed/pixelfed/issues/6643"
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"url": "https://github.com/pixelfed/pixelfed/commit/68dca5097305fa0065d029587b2233524636025a"
},
{
"tags": [
"patch"
],
"url": "https://github.com/pixelfed/pixelfed/releases/tag/v0.12.10"
},
{
"tags": [
"product"
],
"url": "https://github.com/pixelfed/pixelfed/"
}
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"tags": [
"x_open-source"
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"time": "2026-09-19T00:00:00.000Z",
"value": "Advisory disclosed"
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"time": "2026-09-19T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-09-19T11:22:00.000Z",
"value": "VulDB entry last update"
}
],
"title": "Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication",
"x_generator": [
"VulDB PVTS v202609"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-93960",
"datePublished": "2026-09-20T03:00:19.652Z",
"dateReserved": "2026-09-19T09:16:56.504Z",
"dateUpdated": "2026-09-20T03:00:19.652Z",
"state": "PUBLISHED"
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"dataVersion": "5.2",
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"date": "2026-09-21",
"epss": "0.00366",
"percentile": "0.30324"
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"nvd": {
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"affected": [
{
"affectedData": [
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],
"modules": [
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],
"product": "Pixelfed",
"vendor": "n/a",
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{
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},
{
"status": "affected",
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{
"status": "affected",
"version": "0.12.5"
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"status": "affected",
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"value": "A vulnerability was identified in Pixelfed up to 0.12.11. Impacted is the function instancePeers of the file app/Http/Controllers/Api/ApiV1Controller.php of the component OAuth Scope Handler. Such manipulation of the argument ID leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 0.12.10 is recommended to address this issue. The name of the patch is 68dca5097305fa0065d029587b2233524636025a. Upgrading the affected component is advised."
}
],
"id": "CVE-2026-93960",
"lastModified": "2026-09-21T13:33:33.387",
"metrics": {
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{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 4.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
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"scope": "UNCHANGED",
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"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
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"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
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"valueDensity": "NOT_DEFINED",
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"published": "2026-09-20T04:17:55.540",
"references": [
{
"source": "cna@vuldb.com",
"url": "https://github.com/pixelfed/pixelfed/"
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{
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{
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"url": "https://github.com/pixelfed/pixelfed/releases/tag/v0.12.10"
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},
{
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{
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},
{
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],
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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