CVE-2025-14524 (GCVE-0-2025-14524)
Vulnerability from cvelistv5 – Published: 2026-01-08 10:07 – Updated: 2026-09-15 06:02
VLAI
EPSS
VEX
Title
bearer token leak on cross-protocol redirect
Summary
When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer
performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP,
POP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new
target host.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-09 19:24 UTC
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| curl | curl |
Affected:
7.33.0 , < 8.14.2
(semver)
Affected: 8.15.0 , < 8.16.1 (semver) Affected: 8.17.0 , < 8.18.0 (semver) |
guessed | |
| curl | curl |
Affected:
06c1bea72faabb6fad4b7ef818aafaa336c9a7aa , < 1a822275d333dc6da6043497160fd04c8fa48640
(git)
|
guessed | |
| curl | curl |
Affected:
8.17.0
Affected: 8.16.0 Affected: 8.15.0 Affected: 8.14.1 Affected: 8.14.0 Affected: 8.13.0 Affected: 8.12.1 Affected: 8.12.0 Affected: 8.11.1 Affected: 8.11.0 Affected: 8.10.1 Affected: 8.10.0 Affected: 8.9.1 Affected: 8.9.0 Affected: 8.8.0 Affected: 8.7.1 Affected: 8.7.0 Affected: 8.6.0 Affected: 8.5.0 Affected: 8.4.0 Affected: 8.3.0 Affected: 8.2.1 Affected: 8.2.0 Affected: 8.1.2 Affected: 8.1.1 Affected: 8.1.0 Affected: 8.0.1 Affected: 8.0.0 Affected: 7.88.1 Affected: 7.88.0 Affected: 7.87.0 Affected: 7.86.0 Affected: 7.85.0 Affected: 7.84.0 Affected: 7.83.1 Affected: 7.83.0 Affected: 7.82.0 Affected: 7.81.0 Affected: 7.80.0 Affected: 7.79.1 Affected: 7.79.0 Affected: 7.78.0 Affected: 7.77.0 Affected: 7.76.1 Affected: 7.76.0 Affected: 7.75.0 Affected: 7.74.0 Affected: 7.73.0 Affected: 7.72.0 Affected: 7.71.1 Affected: 7.71.0 Affected: 7.70.0 Affected: 7.69.1 Affected: 7.69.0 Affected: 7.68.0 Affected: 7.67.0 Affected: 7.66.0 Affected: 7.65.3 Affected: 7.65.2 Affected: 7.65.1 Affected: 7.65.0 Affected: 7.64.1 Affected: 7.64.0 Affected: 7.63.0 Affected: 7.62.0 Affected: 7.61.1 Affected: 7.61.0 Affected: 7.60.0 Affected: 7.59.0 Affected: 7.58.0 Affected: 7.57.0 Affected: 7.56.1 Affected: 7.56.0 Affected: 7.55.1 Affected: 7.55.0 Affected: 7.54.1 Affected: 7.54.0 Affected: 7.53.1 Affected: 7.53.0 Affected: 7.52.1 Affected: 7.52.0 Affected: 7.51.0 Affected: 7.50.3 Affected: 7.50.2 Affected: 7.50.1 Affected: 7.50.0 Affected: 7.49.1 Affected: 7.49.0 Affected: 7.48.0 Affected: 7.47.1 Affected: 7.47.0 Affected: 7.46.0 Affected: 7.45.0 Affected: 7.44.0 Affected: 7.43.0 Affected: 7.42.1 Affected: 7.42.0 Affected: 7.41.0 Affected: 7.40.0 Affected: 7.39.0 Affected: 7.38.0 Affected: 7.37.1 Affected: 7.37.0 Affected: 7.36.0 Affected: 7.35.0 Affected: 7.34.0 Affected: 7.33.0 |
guessed |
{
"containers": {
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{
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"dateUpdated": "2026-01-08T11:06:18.117Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
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"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
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{
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"version": "7.83.0"
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"version": "7.79.0"
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"version": "7.78.0"
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"version": "7.77.0"
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"status": "affected",
"version": "7.76.1"
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{
"status": "affected",
"version": "7.76.0"
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{
"status": "affected",
"version": "7.75.0"
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{
"status": "affected",
"version": "7.74.0"
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{
"status": "affected",
"version": "7.73.0"
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"status": "affected",
"version": "7.72.0"
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"version": "7.71.1"
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"version": "7.64.0"
},
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"version": "7.63.0"
},
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},
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},
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},
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},
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},
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"version": "7.34.0"
},
{
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"version": "7.33.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "anonymous237 on hackerone"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a cross-protocol redirect to a second URL that uses an IMAP, LDAP,\nPOP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new\ntarget host."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:29.317Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2025-14524.json"
},
{
"url": "https://curl.se/docs/CVE-2025-14524.html"
},
{
"url": "https://hackerone.com/reports/3459417"
}
],
"title": "bearer token leak on cross-protocol redirect",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.33.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
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},
{
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},
{
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],
"type": "SEMVER"
},
{
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{
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},
{
"fixed": "1a822275d333dc6da6043497160fd04c8fa48640"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
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"7.68.0",
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"7.66.0",
"7.65.3",
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"7.65.1",
"7.65.0",
"7.64.1",
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"7.63.0",
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"7.61.1",
"7.61.0",
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"7.56.1",
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"7.55.1",
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"7.54.1",
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"7.53.1",
"7.53.0",
"7.52.1",
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"7.51.0",
"7.50.3",
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"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
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"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0"
]
}
],
"aliases": [
"CVE-2025-14524"
],
"credits": [
{
"name": "anonymous237 on hackerone",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Insufficiently Protected Credentials",
"id": "CWE-522"
},
"URL": "https://curl.se/docs/CVE-2025-14524.json",
"affects": "both",
"award": {
"amount": "505",
"currency": "USD"
},
"issue": "https://hackerone.com/reports/3459417",
"last_affected": "8.17.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2025-14524.html"
},
"details": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a cross-protocol redirect to a second URL that uses an IMAP, LDAP,\nPOP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new\ntarget host.",
"id": "CURL-CVE-2025-14524",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-01-07T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "bearer token leak on cross-protocol redirect"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2025-14524",
"datePublished": "2026-01-08T10:07:25.655Z",
"dateReserved": "2025-12-11T08:04:14.328Z",
"dateUpdated": "2026-09-15T06:02:29.317Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-14524",
"date": "2026-09-26",
"epss": "0.00665",
"percentile": "0.4977"
},
"microsoft_vex": {
"current_release_date": "2026-03-10T01:38:55.000Z",
"cve": "CVE-2025-14524",
"id": "msrc_CVE-2025-14524",
"initial_release_date": "2026-01-02T00:00:00.000Z",
"product_status:fixed": "3",
"product_status:known_affected": "5",
"product_status:known_not_affected": "17",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "bearer token leak on cross-protocol redirect",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2025-14524.json",
"version": "8"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.33.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.18.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "1a822275d333dc6da6043497160fd04c8fa48640",
"status": "affected",
"version": "06c1bea72faabb6fad4b7ef818aafaa336c9a7aa",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
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},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "anonymous237 on hackerone"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a cross-protocol redirect to a second URL that uses an IMAP, LDAP,\nPOP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new\ntarget host."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:29.317Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2025-14524.json"
},
{
"url": "https://curl.se/docs/CVE-2025-14524.html"
},
{
"url": "https://hackerone.com/reports/3459417"
}
],
"title": "bearer token leak on cross-protocol redirect",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.33.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.18.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "06c1bea72faabb6fad4b7ef818aafaa336c9a7aa"
},
{
"fixed": "1a822275d333dc6da6043497160fd04c8fa48640"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0"
]
}
],
"aliases": [
"CVE-2025-14524"
],
"credits": [
{
"name": "anonymous237 on hackerone",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Insufficiently Protected Credentials",
"id": "CWE-522"
},
"URL": "https://curl.se/docs/CVE-2025-14524.json",
"affects": "both",
"award": {
"amount": "505",
"currency": "USD"
},
"issue": "https://hackerone.com/reports/3459417",
"last_affected": "8.17.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2025-14524.html"
},
"details": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a cross-protocol redirect to a second URL that uses an IMAP, LDAP,\nPOP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new\ntarget host.",
"id": "CURL-CVE-2025-14524",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-01-07T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "bearer token leak on cross-protocol redirect"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2025-14524",
"datePublished": "2026-01-08T10:07:25.655Z",
"dateReserved": "2025-12-11T08:04:14.328Z",
"dateUpdated": "2026-09-15T06:02:29.317Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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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