SUSE-SU-2026:23894-1
Vulnerability from csaf_suse - Published: 2026-09-24 07:07 - Updated: 2026-10-15 17:13Summary
Security update for expat
Severity
Important
Notes
Title of the patch: Security update for expat
Description of the patch: This update for expat fixes the following issues:
- CVE-2026-41080: crafted XML document can cause a denial of service (bsc#1262263).
- CVE-2026-45186: In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a
denial of service via moderately sized crafted XML input (bsc#1264713).
- CVE-2026-50219: libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse,
XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation (bsc#1267631).
- CVE-2026-56131: libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within
handlers in cases of a policy violation (bsc#1268572).
- CVE-2026-56132: mishandled memory reallocation during array scaffolding in doProlog can cause heap-based buffer
overflows (bsc#1268573).
- CVE-2026-56403: integer overflow in the storeAtts function can cause memory corruption and potential arbitrary code
execution (bsc#1275096).
- CVE-2026-56404: integer overflow in the addBinding function can cause undersized memory allocations, memory
corruption, and application crashes (bsc#1275096).
- CVE-2026-56405: integer overflow in the getAttributeId function can cause heap memory corruption and arbitrary
code execution (bsc#1275096).
- CVE-2026-56406: missing bounds validation in XML_ParseBuffer can cause integer overflows, memory corruption, and
application crashes (bsc#1275096).
- CVE-2026-56407: integer overflow in doProlog related to entity text length can cause memory corruption and denial
of service (bsc#1275096).
- CVE-2026-56408: integer overflow in the copyString function can cause heap memory corruption and application crashes
(bsc#1275096).
- CVE-2026-56409: integer overflow in the xmlwf utility output filename handling can allow path buffer corruption and
arbitrary file write conditions (bsc#1275096).
- CVE-2026-56410: integer overflow in resolveSystemId within the xmlwf utility can cause memory corruption, information
disclosure, and potential code execution (bsc#1275096).
- CVE-2026-56411: integer overflow in endDoctypeDecl via NOTATION declarations in xmlwf can cause memory corruption and
denial of service (bsc#1275096).
- CVE-2026-56412: incomplete handler call depth tracking in doCdataSection can cause use-after-free
conditions and arbitrary code execution (bsc#1275096).
- CVE-2026-66046: libexpat: denial of service vulnerability caused by quadratic algorithmic complexity in the
storeAtts() function in xmlparse.c (bsc#1275732).
- CVE-2026-72522: libexpat: out-of-bounds read and resultant infinite loop due to low surrogates being treated the same
as high surrogates during Unicode processing (bsc#1275594).
- CVE-2026-76641: Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger
memory corruption (bsc#1275915).
- CVE-2026-76956: In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to
insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via
crafted X (bsc#1275860).
- CVE-2026-76957: libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. (bsc#1275859).
Changes for expat:
- Updated to version 2.8.4
Patchnames: SUSE-SL-Micro-6.2-1754
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Affected products
Recommended
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
low
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
low
4.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
4.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
4.5 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.3 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
6.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
4.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
7.5 (High)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
important
7.5 (High)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
important
7.5 (High)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
important
7.5 (High)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
important
4.9 (Medium)
Affected products
Recommended
4 products, the same list as for
CVE-2026-41080
Threats
Impact
moderate
References
90 references
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"category": "summary",
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"text": "This update for expat fixes the following issues:\n\n- CVE-2026-41080: crafted XML document can cause a denial of service (bsc#1262263).\n- CVE-2026-45186: In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a\n denial of service via moderately sized crafted XML input (bsc#1264713).\n- CVE-2026-50219: libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse,\n XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation (bsc#1267631).\n- CVE-2026-56131: libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within\n handlers in cases of a policy violation (bsc#1268572).\n- CVE-2026-56132: mishandled memory reallocation during array scaffolding in doProlog can cause heap-based buffer\n overflows (bsc#1268573).\n- CVE-2026-56403: integer overflow in the storeAtts function can cause memory corruption and potential arbitrary code\n execution (bsc#1275096).\n- CVE-2026-56404: integer overflow in the addBinding function can cause undersized memory allocations, memory\n corruption, and application crashes (bsc#1275096).\n- CVE-2026-56405: integer overflow in the getAttributeId function can cause heap memory corruption and arbitrary\n code execution (bsc#1275096).\n- CVE-2026-56406: missing bounds validation in XML_ParseBuffer can cause integer overflows, memory corruption, and\n application crashes (bsc#1275096).\n- CVE-2026-56407: integer overflow in doProlog related to entity text length can cause memory corruption and denial\n of service (bsc#1275096).\n- CVE-2026-56408: integer overflow in the copyString function can cause heap memory corruption and application crashes\n (bsc#1275096).\n- CVE-2026-56409: integer overflow in the xmlwf utility output filename handling can allow path buffer corruption and\n arbitrary file write conditions (bsc#1275096).\n- CVE-2026-56410: integer overflow in resolveSystemId within the xmlwf utility can cause memory corruption, information\n disclosure, and potential code execution (bsc#1275096).\n- CVE-2026-56411: integer overflow in endDoctypeDecl via NOTATION declarations in xmlwf can cause memory corruption and\n denial of service (bsc#1275096).\n- CVE-2026-56412: incomplete handler call depth tracking in doCdataSection can cause use-after-free\n conditions and arbitrary code execution (bsc#1275096).\n- CVE-2026-66046: libexpat: denial of service vulnerability caused by quadratic algorithmic complexity in the\n storeAtts() function in xmlparse.c (bsc#1275732).\n- CVE-2026-72522: libexpat: out-of-bounds read and resultant infinite loop due to low surrogates being treated the same\n as high surrogates during Unicode processing (bsc#1275594).\n- CVE-2026-76641: Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger\n memory corruption (bsc#1275915).\n- CVE-2026-76956: In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy\u0027s return code leads to\n insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via\n crafted X (bsc#1275860).\n- CVE-2026-76957: libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. (bsc#1275859).\n\nChanges for expat:\n\n- Updated to version 2.8.4\n",
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"category": "self",
"summary": "SUSE Bug 1262263",
"url": "https://bugzilla.suse.com/1262263"
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{
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"url": "https://bugzilla.suse.com/1264713"
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{
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"url": "https://bugzilla.suse.com/1275096"
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"url": "https://bugzilla.suse.com/1275859"
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{
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"summary": "SUSE Bug 1275860",
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{
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"url": "https://bugzilla.suse.com/1275915"
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"url": "https://www.suse.com/security/cve/CVE-2026-72522/"
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"url": "https://www.suse.com/security/cve/CVE-2026-76641/"
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"summary": "SUSE CVE CVE-2026-76957 page",
"url": "https://www.suse.com/security/cve/CVE-2026-76957/"
}
],
"title": "Security update for expat",
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"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "libexpat1-0:2.8.4-160000.1.1.aarch64",
"product": {
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],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
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"product_id": "SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64"
},
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},
{
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},
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"relates_to_product_reference": "SUSE Linux Micro 6.2"
},
{
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},
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{
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},
"product_reference": "libexpat1-0:2.8.4-160000.1.1.x86_64",
"relates_to_product_reference": "SUSE Linux Micro 6.2"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-41080",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-41080"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.",
"title": "CVE description"
}
],
"product_status": {
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-41080",
"url": "https://www.suse.com/security/cve/CVE-2026-41080"
},
{
"category": "external",
"summary": "SUSE Bug 1262263 for CVE-2026-41080",
"url": "https://bugzilla.suse.com/1262263"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 2.5,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
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{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "low"
}
],
"title": "CVE-2026-41080"
},
{
"cve": "CVE-2026-45186",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-45186"
}
],
"notes": [
{
"category": "general",
"text": "In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.",
"title": "CVE description"
}
],
"product_status": {
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-45186",
"url": "https://www.suse.com/security/cve/CVE-2026-45186"
},
{
"category": "external",
"summary": "SUSE Bug 1264713 for CVE-2026-45186",
"url": "https://bugzilla.suse.com/1264713"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
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]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 2.9,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "low"
}
],
"title": "CVE-2026-45186"
},
{
"cve": "CVE-2026-50219",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-50219"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
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]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-50219",
"url": "https://www.suse.com/security/cve/CVE-2026-50219"
},
{
"category": "external",
"summary": "SUSE Bug 1267631 for CVE-2026-50219",
"url": "https://bugzilla.suse.com/1267631"
},
{
"category": "external",
"summary": "SUSE Bug 1268572 for CVE-2026-50219",
"url": "https://bugzilla.suse.com/1268572"
},
{
"category": "external",
"summary": "SUSE Bug 1275859 for CVE-2026-50219",
"url": "https://bugzilla.suse.com/1275859"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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]
}
],
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{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "moderate"
}
],
"title": "CVE-2026-50219"
},
{
"cve": "CVE-2026-56131",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-56131"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).",
"title": "CVE description"
}
],
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-56131",
"url": "https://www.suse.com/security/cve/CVE-2026-56131"
},
{
"category": "external",
"summary": "SUSE Bug 1268572 for CVE-2026-56131",
"url": "https://bugzilla.suse.com/1268572"
},
{
"category": "external",
"summary": "SUSE Bug 1275859 for CVE-2026-56131",
"url": "https://bugzilla.suse.com/1275859"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
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}
],
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{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "moderate"
}
],
"title": "CVE-2026-56131"
},
{
"cve": "CVE-2026-56132",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-56132"
}
],
"notes": [
{
"category": "general",
"text": "In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.",
"title": "CVE description"
}
],
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},
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{
"category": "external",
"summary": "CVE-2026-56132",
"url": "https://www.suse.com/security/cve/CVE-2026-56132"
},
{
"category": "external",
"summary": "SUSE Bug 1268573 for CVE-2026-56132",
"url": "https://bugzilla.suse.com/1268573"
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],
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{
"category": "vendor_fix",
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}
],
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{
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}
],
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},
{
"cve": "CVE-2026-56403",
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{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-56403"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.2 has an integer overflow in storeAtts.",
"title": "CVE description"
}
],
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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},
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{
"category": "external",
"summary": "CVE-2026-56403",
"url": "https://www.suse.com/security/cve/CVE-2026-56403"
},
{
"category": "external",
"summary": "SUSE Bug 1268741 for CVE-2026-56403",
"url": "https://bugzilla.suse.com/1268741"
},
{
"category": "external",
"summary": "SUSE Bug 1275096 for CVE-2026-56403",
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}
],
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{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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}
],
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{
"cvss_v3": {
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
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}
],
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"category": "impact",
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],
"title": "CVE-2026-56403"
},
{
"cve": "CVE-2026-56404",
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{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-56404"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.2 has an integer overflow in addBinding.",
"title": "CVE description"
}
],
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
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},
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{
"category": "external",
"summary": "CVE-2026-56404",
"url": "https://www.suse.com/security/cve/CVE-2026-56404"
},
{
"category": "external",
"summary": "SUSE Bug 1268741 for CVE-2026-56404",
"url": "https://bugzilla.suse.com/1268741"
},
{
"category": "external",
"summary": "SUSE Bug 1275096 for CVE-2026-56404",
"url": "https://bugzilla.suse.com/1275096"
}
],
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{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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}
],
"scores": [
{
"cvss_v3": {
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
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}
],
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{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "moderate"
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],
"title": "CVE-2026-56404"
},
{
"cve": "CVE-2026-56405",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-56405"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.2 has an integer overflow in getAttributeId.",
"title": "CVE description"
}
],
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},
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{
"category": "external",
"summary": "CVE-2026-56405",
"url": "https://www.suse.com/security/cve/CVE-2026-56405"
},
{
"category": "external",
"summary": "SUSE Bug 1268741 for CVE-2026-56405",
"url": "https://bugzilla.suse.com/1268741"
},
{
"category": "external",
"summary": "SUSE Bug 1275096 for CVE-2026-56405",
"url": "https://bugzilla.suse.com/1275096"
}
],
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{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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}
],
"scores": [
{
"cvss_v3": {
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"products": [
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}
],
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],
"title": "CVE-2026-56405"
},
{
"cve": "CVE-2026-56406",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-56406"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse.",
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}
],
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},
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{
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{
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}
],
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{
"category": "general",
"text": "libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.",
"title": "CVE description"
}
],
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{
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"summary": "SUSE Bug 1268741 for CVE-2026-56407",
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{
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"category": "general",
"text": "libexpat before 2.8.2 has an integer overflow in copyString.",
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}
],
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},
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"summary": "CVE-2026-56408",
"url": "https://www.suse.com/security/cve/CVE-2026-56408"
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{
"category": "external",
"summary": "SUSE Bug 1268741 for CVE-2026-56408",
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{
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}
],
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{
"category": "general",
"text": "xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.",
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}
],
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{
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{
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],
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{
"category": "general",
"text": "xmlwf in libexpat before 2.8.2 has an integer overflow in resolveSystemId.",
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],
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{
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"summary": "SUSE Bug 1268741 for CVE-2026-56410",
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{
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],
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{
"category": "general",
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}
],
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{
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"summary": "SUSE Bug 1268741 for CVE-2026-56411",
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{
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],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.2 does not consider XML_TOK_DATA_CHARS in doCdataSection and thus lacks handler call depth tracking for various calls from within handlers in cases of a policy violation. Thus, a use-after-free can occur. NOTE: this issue exists because of an incomplete fix for CVE-2026-50219.",
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{
"category": "external",
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{
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{
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],
"notes": [
{
"category": "general",
"text": "Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts() function in xmlparse.c, where processing N specified attributes with non-normalized values triggers an O(N^2) linear scan of elementType-\u003edefaultAtts to determine CDATA status. A remote unauthenticated attacker can supply a single well-formed XML document of a few megabytes to an application parsing untrusted XML to cause excessive CPU consumption, resulting in denial of service without requiring authentication, external entity resolution, or non-default parser options.",
"title": "CVE description"
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{
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],
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"products": [
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"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "important"
}
],
"title": "CVE-2026-66046"
},
{
"cve": "CVE-2026-72522",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-72522"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the same as high surrogates during Unicode processing in the *_toUtf16 functions.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-72522",
"url": "https://www.suse.com/security/cve/CVE-2026-72522"
},
{
"category": "external",
"summary": "SUSE Bug 1275593 for CVE-2026-72522",
"url": "https://bugzilla.suse.com/1275593"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "important"
}
],
"title": "CVE-2026-72522"
},
{
"cve": "CVE-2026-76641",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-76641"
}
],
"notes": [
{
"category": "general",
"text": "Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by processing XML with external entity parsers created via XML_ExternalEntityParserCreate. A struct size mismatch between ELEMENT_TYPE members causes storeAtts to read the attIndex member past allocated memory boundaries, resulting in failure to normalize whitespace in non-CDATA attributes or a wild pointer dereference causing a segfault. This vulnerability was introduced by the fix for CVE-2026-66046.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-76641",
"url": "https://www.suse.com/security/cve/CVE-2026-76641"
},
{
"category": "external",
"summary": "SUSE Bug 1275915 for CVE-2026-76641",
"url": "https://bugzilla.suse.com/1275915"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "important"
}
],
"title": "CVE-2026-76641"
},
{
"cve": "CVE-2026-76956",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-76956"
}
],
"notes": [
{
"category": "general",
"text": "In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy\u0027s return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-76956",
"url": "https://www.suse.com/security/cve/CVE-2026-76956"
},
{
"category": "external",
"summary": "SUSE Bug 1275860 for CVE-2026-76956",
"url": "https://bugzilla.suse.com/1275860"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "important"
}
],
"title": "CVE-2026-76956"
},
{
"cve": "CVE-2026-76957",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-76957"
}
],
"notes": [
{
"category": "general",
"text": "libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-76957",
"url": "https://www.suse.com/security/cve/CVE-2026-76957"
},
{
"category": "external",
"summary": "SUSE Bug 1275859 for CVE-2026-76957",
"url": "https://bugzilla.suse.com/1275859"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.aarch64",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.ppc64le",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.s390x",
"SUSE Linux Micro 6.2:libexpat1-0:2.8.4-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-24T07:07:13Z",
"details": "moderate"
}
],
"title": "CVE-2026-76957"
}
]
}
Loading…
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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
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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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.