CVE-2026-18924 (GCVE-0-2026-18924)
Vulnerability from cvelistv5
Published
2026-09-06 17:47
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent
handle is set to share connections with other handles, can lead to
use-after-free in the cleanup process.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.44.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ Version: 8.21.0 ≤ |
||||||||||||
|
||||||||||||||
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\"7.47.1\"}, {\"status\": \"affected\", \"version\": \"7.47.0\"}, {\"status\": \"affected\", \"version\": \"7.46.0\"}, {\"status\": \"affected\", \"version\": \"7.45.0\"}, {\"status\": \"affected\", \"version\": \"7.44.0\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://curl.se/docs/CVE-2026-18924.json\"}, {\"url\": \"https://curl.se/docs/CVE-2026-18924.html\"}, {\"url\": \"https://hackerone.com/reports/3916059\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw in libcurl\u0027s handling of HTTP/2 Server Push streams, when the parent\\nhandle is set to share connections with other handles, can lead to\\nuse-after-free in the cleanup process.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"2499f714-1537-4658-8207-48ae4bb9eae9\", \"shortName\": \"curl\", \"dateUpdated\": \"2026-09-15T06:02:47.329Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-18924\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-15T06:02:47.329Z\", \"dateReserved\": \"2026-08-05T08:31:56.125Z\", \"assignerOrgId\": \"2499f714-1537-4658-8207-48ae4bb9eae9\", \"datePublished\": \"2026-09-06T17:47:27.820Z\", \"assignerShortName\": \"curl\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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