CVE-2026-44796 (GCVE-0-2026-44796)
Vulnerability from cvelistv5 – Published: 2026-05-28 17:00 – Updated: 2026-05-28 17:00
VLAI
Title
Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)
Summary
Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, Nautobot UI object-bulk-rename endpoints (for example, /dcim/interfaces/rename/) were vulnerable to application-wide denial of service via maliciously crafted regular expressions in the find field in combination with the use_regex flag. This vulnerability is fixed in 2.4.33 and 3.1.2.
Severity
6.5 (Medium)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/nautobot/nautobot/security/adv… | x_refsource_CONFIRM |
| https://github.com/nautobot/nautobot/commit/5a30d… | x_refsource_MISC |
| https://github.com/nautobot/nautobot/commit/c2b76… | x_refsource_MISC |
| https://github.com/nautobot/nautobot/releases/tag… | x_refsource_MISC |
| https://github.com/nautobot/nautobot/releases/tag… | x_refsource_MISC |
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"product": "nautobot",
"vendor": "nautobot",
"versions": [
{
"status": "affected",
"version": "\u003e= 3.0.0a2, \u003c 3.1.2"
},
{
"status": "affected",
"version": "\u003c 2.4.33"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, Nautobot UI object-bulk-rename endpoints (for example, /dcim/interfaces/rename/) were vulnerable to application-wide denial of service via maliciously crafted regular expressions in the find field in combination with the use_regex flag. This vulnerability is fixed in 2.4.33 and 3.1.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1333",
"description": "CWE-1333: Inefficient Regular Expression Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-28T17:00:06.533Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm"
},
{
"name": "https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd"
},
{
"name": "https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee"
},
{
"name": "https://github.com/nautobot/nautobot/releases/tag/v2.4.33",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nautobot/nautobot/releases/tag/v2.4.33"
},
{
"name": "https://github.com/nautobot/nautobot/releases/tag/v3.1.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nautobot/nautobot/releases/tag/v3.1.2"
}
],
"source": {
"advisory": "GHSA-qrpw-gjvh-x5gm",
"discovery": "UNKNOWN"
},
"title": "Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-44796",
"datePublished": "2026-05-28T17:00:06.533Z",
"dateReserved": "2026-05-07T19:20:44.693Z",
"dateUpdated": "2026-05-28T17:00:06.533Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-44796\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-05-28T18:16:33.417\",\"lastModified\":\"2026-05-28T18:38:35.797\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, Nautobot UI object-bulk-rename endpoints (for example, /dcim/interfaces/rename/) were vulnerable to application-wide denial of service via maliciously crafted regular expressions in the find field in combination with the use_regex flag. This vulnerability is fixed in 2.4.33 and 3.1.2.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"},{\"lang\":\"en\",\"value\":\"CWE-1333\"}]}],\"references\":[{\"url\":\"https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/releases/tag/v2.4.33\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/releases/tag/v3.1.2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm\",\"source\":\"security-advisories@github.com\"}]}}"
}
}
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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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