RHSA-2026:83847
Vulnerability from csaf_redhat - Published: 2026-10-16 20:37 - Updated: 2026-10-30 06:54Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
maven3.9:
* maven3.9-3.9.16-0.4.hum1 (noarch)
* maven3.9-lib-3.9.16-0.4.hum1 (noarch)
* maven3.9-3.9.16-0.4.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in OW2 ASM. An attacker can cause a Denial of Service (DoS) by providing a specially crafted Java class file. Due to missing attribute length validation during class parsing, processing the file triggers excessive memory allocation, exhausting system resources and crashing the application or the Java Virtual Machine (JVM).
5.5 (Medium)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:maven3.9-0:3.9.16-0.4.hum1@noarch@public-hummingbird-aarch64-rpms | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:maven3.9-0:3.9.16-0.4.hum1@noarch@public-hummingbird-s390x-rpms | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:maven3.9-0:3.9.16-0.4.hum1@noarch@public-hummingbird-x86_64-rpms | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:maven3.9-0:3.9.16-0.4.hum1@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:maven3.9-lib-0:3.9.16-0.4.hum1@noarch@public-hummingbird-aarch64-rpms | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:maven3.9-lib-0:3.9.16-0.4.hum1@noarch@public-hummingbird-s390x-rpms | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:maven3.9-lib-0:3.9.16-0.4.hum1@noarch@public-hummingbird-x86_64-rpms | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in OW2 ASM. An attacker could cause a Denial of Service (DoS) by providing a specially crafted, invalid Java class file. Due to improper validation of subroutine instructions, processing the file triggers excessive memory allocation, causing the Java Virtual Machine (JVM) to crash.
5.5 (Medium)
Affected products
Fixed
7 products, the same list as for
CVE-2026-110257
Threats
Impact
Moderate
A flaw was found in OW2 ASM. An attacker can trigger a Denial of Service (DoS) by providing a specially crafted Java class file containing numerous overlapping exception handlers. When the library analyzes the method stack or frame structures of such a file, it performs excessive memory allocation, leading to an out-of-memory condition that crashes the Java Virtual Machine (JVM).
5.5 (Medium)
Affected products
Fixed
7 products, the same list as for
CVE-2026-110257
Threats
Impact
Moderate
A flaw was found in OW2 ASM. An attacker can supply a specially crafted class file to an application that analyzes or transforms bytecode with automatic stack map frame computation enabled. This causes an internal computation algorithm to take an excessive amount of time to complete, consuming high CPU resources and leading to a Denial of Service (DoS).
5.5 (Medium)
Affected products
Fixed
7 products, the same list as for
CVE-2026-110257
Threats
Impact
Moderate
A flaw was found in OW2 ASM. An attacker could cause a Denial of Service (DoS) by providing a specially crafted Java class file containing deeply nested generic type signatures. When the library parses these signatures using the SignatureReader component, uncontrolled recursion exhausts available stack memory, resulting in an application crash.
5.5 (Medium)
Affected products
Fixed
7 products, the same list as for
CVE-2026-110257
Threats
Impact
Moderate
References
50 references
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"vulnerabilities": [
{
"cve": "CVE-2026-110257",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-10-14T14:36:19.504908+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2552305"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in OW2 ASM. An attacker can cause a Denial of Service (DoS) by providing a specially crafted Java class file. Due to missing attribute length validation during class parsing, processing the file triggers excessive memory allocation, exhausting system resources and crashing the application or the Java Virtual Machine (JVM).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "org.ow2.asm/asm: OW2 ASM: Denial of Service via excessive memory allocation",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as Moderate impact because triggering the condition requires an application or build tool to parse untrusted Java bytecode, limiting the blast radius to a denial of service without compromising data confidentiality or system integrity. In Red Hat environments, ASM is predominantly embedded in developer tooling and middleware frameworks where class analysis is performed on trusted libraries and artifacts. Consequently, remote or unauthenticated exploitation in standard deployments is unlikely unless an application explicitly parses arbitrary bytecode supplied by untrusted users.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-110257"
},
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"summary": "RHBZ#2552305",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2552305"
},
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-110257"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-110257",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110257"
},
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"url": "https://asm.ow2.io/versions.html"
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{
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"summary": "https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm/src/main/java/org/objectweb/asm/ClassReader.java#L3497",
"url": "https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm/src/main/java/org/objectweb/asm/ClassReader.java#L3497"
},
{
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"summary": "https://gitlab.ow2.org/asm/asm/-/commit/eb5fa95bb0670eaec2ecf9b8a3a501b48e5a967c",
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},
{
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"summary": "https://gitlab.ow2.org/asm/asm/-/merge_requests/456",
"url": "https://gitlab.ow2.org/asm/asm/-/merge_requests/456"
},
{
"category": "external",
"summary": "https://www.vulncheck.com/advisories/ow2-asm-5.0-before-9.11-excessive-memory-allocation-via-bootstrapmethods-attribute",
"url": "https://www.vulncheck.com/advisories/ow2-asm-5.0-before-9.11-excessive-memory-allocation-via-bootstrapmethods-attribute"
}
],
"release_date": "2026-10-14T14:16:30.933000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-16T20:37:42+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "org.ow2.asm/asm: OW2 ASM: Denial of Service via crafted class files during frame computation"
},
{
"cve": "CVE-2026-110263",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-10-14T14:33:11.845319+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2552264"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in OW2 ASM. An attacker could cause a Denial of Service (DoS) by providing a specially crafted Java class file containing deeply nested generic type signatures. When the library parses these signatures using the SignatureReader component, uncontrolled recursion exhausts available stack memory, resulting in an application crash.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "org.ow2.asm/asm: OW2 ASM: Denial of Service via uncontrolled recursion in SignatureReader",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated with a Moderate severity because exploitation requires an application or build pipeline to process an untrusted, maliciously structured Java class file. In typical Red Hat deployments, ASM is used internally by developer tools or runtime instrumentation frameworks on trusted artifacts. Successful exploitation results in an unhandled stack overflow that halts the parsing Java process, causing denial of service with no loss of data integrity or confidentiality.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-110263"
},
{
"category": "external",
"summary": "RHBZ#2552264",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2552264"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-110263",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-110263"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-110263",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110263"
},
{
"category": "external",
"summary": "https://asm.ow2.io/versions.html",
"url": "https://asm.ow2.io/versions.html"
},
{
"category": "external",
"summary": "https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm/src/main/java/org/objectweb/asm/signature/SignatureReader.java#L151",
"url": "https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm/src/main/java/org/objectweb/asm/signature/SignatureReader.java#L151"
},
{
"category": "external",
"summary": "https://gitlab.ow2.org/asm/asm/-/commit/8f87fc0317a4c5ee8f538bcbb641928def25dbd6",
"url": "https://gitlab.ow2.org/asm/asm/-/commit/8f87fc0317a4c5ee8f538bcbb641928def25dbd6"
},
{
"category": "external",
"summary": "https://gitlab.ow2.org/asm/asm/-/merge_requests/465",
"url": "https://gitlab.ow2.org/asm/asm/-/merge_requests/465"
},
{
"category": "external",
"summary": "https://www.vulncheck.com/advisories/ow2-asm-3.0-before-9.11-uncontrolled-recursion-in-signaturereader",
"url": "https://www.vulncheck.com/advisories/ow2-asm-3.0-before-9.11-uncontrolled-recursion-in-signaturereader"
}
],
"release_date": "2026-10-14T14:16:34.949000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-16T20:37:42+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:83847"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "org.ow2.asm/asm: OW2 ASM: Denial of Service via uncontrolled recursion in SignatureReader"
}
]
}
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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.