FKIE_CVE-2026-3633
Vulnerability from fkie_nvd - Published: 2026-03-17 10:16 - Updated: 2026-03-19 19:53
Severity ?
3.9 (Low) - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
A flaw was found in libsoup. A remote attacker, by controlling the method parameter of the `soup_message_new()` function, could inject arbitrary headers and additional request data. This vulnerability, known as CRLF (Carriage Return Line Feed) injection, occurs because the method value is not properly escaped during request line construction, potentially leading to HTTP request injection.
References
| URL | Tags | ||
|---|---|---|---|
| secalert@redhat.com | https://access.redhat.com/security/cve/CVE-2026-3633 | Vendor Advisory | |
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=2445128 | Issue Tracking, Vendor Advisory | |
| secalert@redhat.com | https://gitlab.gnome.org/GNOME/libsoup/-/issues/484 | Exploit, Issue Tracking, Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| gnome | libsoup | - | |
| redhat | enterprise_linux | 6.0 | |
| redhat | enterprise_linux | 7.0 | |
| redhat | enterprise_linux | 8.0 | |
| redhat | enterprise_linux | 9.0 | |
| redhat | enterprise_linux | 10.0 |
{
"configurations": [
{
"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:a:gnome:libsoup:-:*:*:*:*:*:*:*",
"matchCriteriaId": "C5BAC4F4-3ACD-4F4D-920C-F920FD2C5472",
"vulnerable": true
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"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "A flaw was found in libsoup. A remote attacker, by controlling the method parameter of the `soup_message_new()` function, could inject arbitrary headers and additional request data. This vulnerability, known as CRLF (Carriage Return Line Feed) injection, occurs because the method value is not properly escaped during request line construction, potentially leading to HTTP request injection."
},
{
"lang": "es",
"value": "Se encontr\u00f3 una falla en libsoup. Un atacante remoto, al controlar el par\u00e1metro method de la funci\u00f3n \u0027soup_message_new()\u0027, podr\u00eda inyectar encabezados arbitrarios y datos de solicitud adicionales. Esta vulnerabilidad, conocida como inyecci\u00f3n CRLF (Carriage Return Line Feed), ocurre porque el valor del m\u00e9todo no se escapa correctamente durante la construcci\u00f3n de la l\u00ednea de solicitud, lo que podr\u00eda llevar a la inyecci\u00f3n de solicitudes HTTP."
}
],
"id": "CVE-2026-3633",
"lastModified": "2026-03-19T19:53:34.563",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 3.9,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L",
"version": "3.1"
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"exploitabilityScore": 0.5,
"impactScore": 3.4,
"source": "secalert@redhat.com",
"type": "Secondary"
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
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"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
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"impactScore": 2.5,
"source": "nvd@nist.gov",
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"published": "2026-03-17T10:16:00.677",
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"tags": [
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Analyzed",
"weaknesses": [
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"source": "secalert@redhat.com",
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}
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Sightings
| Author | Source | Type | Date |
|---|
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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