FKIE_CVE-2026-42015
Vulnerability from fkie_nvd - Published: 2026-05-26 22:16 - Updated: 2026-10-14 20:17
Severity
Summary
A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"collectionURL": "https://gitlab.com/gnutls/gnutls",
"packageName": "gnutls",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.8.10-4.el10_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.8.9-9.el10_0.19",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_els:7"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.3.29-9.el7_9.2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.6.16-8.el8_10.6",
"versionType": "rpm"
}
]
},
{
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"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
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"product": "Red Hat Enterprise Linux 8",
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{
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"versionType": "rpm"
}
]
},
{
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"cpes": [
"cpe:/a:redhat:rhel_aus:8.4::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream",
"cpe:/o:redhat:rhel_aus:8.4::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
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{
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}
]
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{
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"cpes": [
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"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream",
"cpe:/o:redhat:rhel_aus:8.4::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
],
"defaultStatus": "affected",
"packageName": "libtasn1",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
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"version": "0:4.13-3.el8_4.1",
"versionType": "rpm"
}
]
},
{
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"cpes": [
"cpe:/a:redhat:rhel_aus:8.4::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream",
"cpe:/o:redhat:rhel_aus:8.4::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
],
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"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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{
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"status": "unaffected",
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"versionType": "rpm"
}
]
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{
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"cpes": [
"cpe:/a:redhat:rhel_aus:8.4::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream",
"cpe:/o:redhat:rhel_aus:8.4::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
],
"defaultStatus": "affected",
"packageName": "libtasn1",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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{
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"status": "unaffected",
"version": "0:4.13-3.el8_4.1",
"versionType": "rpm"
}
]
},
{
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"cpe:/a:redhat:rhel_aus:8.6::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream",
"cpe:/o:redhat:rhel_aus:8.6::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.6::baseos"
],
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"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
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{
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]
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"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream",
"cpe:/o:redhat:rhel_aus:8.6::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.6::baseos"
],
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"packageName": "libtasn1",
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"vendor": "Red Hat",
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{
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}
]
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"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream",
"cpe:/o:redhat:rhel_aus:8.6::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.6::baseos"
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"product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream",
"cpe:/o:redhat:rhel_aus:8.6::baseos",
"cpe:/o:redhat:rhel_eus_long_life:8.6::baseos"
],
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"packageName": "libtasn1",
"product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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{
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"status": "unaffected",
"version": "0:4.13-3.el8_6.2",
"versionType": "rpm"
}
]
},
{
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"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8::appstream",
"cpe:/a:redhat:rhel_tus:8.8::appstream",
"cpe:/o:redhat:rhel_e4s:8.8::baseos",
"cpe:/o:redhat:rhel_tus:8.8::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
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{
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"status": "unaffected",
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"versionType": "rpm"
}
]
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{
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"cpe:/a:redhat:rhel_tus:8.8::appstream",
"cpe:/o:redhat:rhel_e4s:8.8::baseos",
"cpe:/o:redhat:rhel_tus:8.8::baseos"
],
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"packageName": "libtasn1",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
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{
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}
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{
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"cpe:/o:redhat:rhel_tus:8.8::baseos"
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"packageName": "gnutls",
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"vendor": "Red Hat",
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{
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"versionType": "rpm"
}
]
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{
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"cpes": [
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"cpe:/a:redhat:rhel_tus:8.8::appstream",
"cpe:/o:redhat:rhel_e4s:8.8::baseos",
"cpe:/o:redhat:rhel_tus:8.8::baseos"
],
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"packageName": "libtasn1",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "0:4.13-4.el8_8.1",
"versionType": "rpm"
}
]
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{
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"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
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"versionType": "rpm"
}
]
},
{
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"cpe:/o:redhat:enterprise_linux:9::baseos"
],
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"packageName": "gnutls",
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]
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{
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"cpe:/a:redhat:rhel_e4s:9.2::appstream",
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],
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"packageName": "gnutls",
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},
{
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"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
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}
]
},
{
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],
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}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.17::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/jetstack-cert-manager-acmesolver-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.17",
"vendor": "Red Hat",
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{
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"versionType": "rpm"
}
]
},
{
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],
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"product": "Cert Manager support for Red Hat OpenShift release 1.17",
"vendor": "Red Hat",
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}
]
},
{
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{
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{
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"vendor": "Red Hat",
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}
]
},
{
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"cpes": [
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"packageName": "rhui5/cds-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
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},
{
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"vendor": "Red Hat",
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},
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{
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],
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"value": "A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts."
},
{
"lang": "es",
"value": "Se encontr\u00f3 un defecto en gnutls. Existe un error de \u0027off-by-one\u0027 en la comprobaci\u00f3n de l\u00edmites de los elementos de la bolsa PKCS#12. Esta vulnerabilidad permite a un atacante remoto escribir m\u00e1s all\u00e1 del array interno de una bolsa PKCS#12 al a\u00f1adir a una bolsa que ya contiene 32 elementos. Esta corrupci\u00f3n de memoria podr\u00eda llevar a una denegaci\u00f3n de servicio (DoS) o potencialmente a otros impactos no especificados."
}
],
"id": "CVE-2026-42015",
"lastModified": "2026-10-14T20:17:43.807",
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"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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"options": [
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{
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},
{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-27T12:47:07.830892Z",
"version": "2.0.3"
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{
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{
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{
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{
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}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.