Vulnerability-Lookup

OPENSUSE-SU-2026:11878-1

Vulnerability from csaf_opensuse - Published: 2026-09-24 00:00 - Updated: 2026-10-02 10:46

Summary

jackson-dataformat-cbor-2.18.11-1.1 on GA media

Severity

Moderate

Notes

Title of the patch: jackson-dataformat-cbor-2.18.11-1.1 on GA media

Description of the patch: These are all security issues fixed in the jackson-dataformat-cbor-2.18.11-1.1 package on the GA media of openSUSE Tumbleweed.

Patchnames: openSUSE-Tumbleweed-2026-11878

CVE-2026-68495

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 16 products

Product	Version	Remediation
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-cbor-0:2.18.11-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-cbor-0:2.18.11-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-cbor-0:2.18.11-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-cbor-0:2.18.11-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-smile-0:2.18.11-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-smile-0:2.18.11-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-smile-0:2.18.11-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformat-smile-0:2.18.11-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-0:2.18.11-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-0:2.18.11-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-0:2.18.11-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-0:2.18.11-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-javadoc-0:2.18.11-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-javadoc-0:2.18.11-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-javadoc-0:2.18.11-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jackson-dataformats-binary-javadoc-0:2.18.11-1.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2026-68496

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 16 products, the same list as for CVE-2026-68495

Threats

Impact important

References

10 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://www.suse.com/security/cve/CVE-2026-68495/	self
https://www.suse.com/security/cve/CVE-2026-68496/	self
https://www.suse.com/security/cve/CVE-2026-68495	external
https://bugzilla.suse.com/1280125	external
https://bugzilla.suse.com/1282639	external
https://www.suse.com/security/cve/CVE-2026-68496	external
https://bugzilla.suse.com/1280125	external
https://bugzilla.suse.com/1282640	external

JSON

To clipboard

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CVE-2026-68495 (GCVE-0-2026-68495)

Vulnerability from cvelistv5 – Published: 2026-10-01 17:36 – Updated: 2026-10-01 18:16

Title

jackson-dataformats-binary: CBOR parser does not enforce StreamReadConstraints.maxNameLength, enabling memory-exhaustion denial of service

Summary

The CBOR parser in FasterXML jackson-dataformats-binary never invokes StreamReadConstraints.validateNameLength() when decoding JSON object property names, so the maxNameLength limit is not enforced for this format. CBORParser._decodeLongerName() decodes a definite-length property name with no length check, and CBORParser._decodeChunkedName() delegates to the value-oriented _finishChunkedText() routine, which validates maxStringLength rather than maxNameLength. An attacker who can have a CBOR document parsed may therefore embed a single property name of unbounded length; the parser buffers the whole name in memory before returning it, whatever maxNameLength is configured to. Because StreamReadConstraints.maxDocumentLength is also disabled by default, nothing else bounds the name under default settings, so the only limits are the attacker's upload capacity and available heap, leading to memory exhaustion and denial of service. No privileges beyond the ability to submit data to a parsing endpoint are required, and exploitation needs only that the bytes reach CBORFactory parsing, directly or through an ObjectMapper configured with the CBOR module. jackson-core's own JSON parsers enforce maxNameLength incrementally during name decoding; this gap is specific to the binary formats. maxNameLength and validateNameLength were introduced in jackson-core 2.16.0, so releases before 2.16.0 do not contain the constraint that is left unenforced. This issue is tracked together with the Smile parser defect in the same vendor advisory, GHSA-3v8f-v6vx-fmrm, which covers both binary formats. The CBOR parser defect (jackson-dataformats-binary issue #725) is CVE-2026-68495; the Smile parser defect (issue #726) is assigned CVE-2026-68496.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-01 18:16 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling
CWE-400 - Uncontrolled Resource Consumption

Assigner

HeroDevs mitre root Scorecard

References

4 references

URL	Tags
https://github.com/FasterXML/jackson-dataformats-…	vendor-advisory
https://github.com/FasterXML/jackson-dataformats-…	patch
https://www.cve.org/CVERecord?id=CVE-2026-68496	related
https://github.com/FasterXML/jackson-dataformats-…	release-notes

Impacted products

2 products

Vendor	Product	Version
FasterXML	jackson-dataformats-binary	Affected: 2.16.0 , ≤ 2.18.9 (maven) Affected: 2.19.0 , ≤ 2.21.5 (maven) Affected: 2.22.0 , ≤ 2.22.1 (maven)
FasterXML	jackson-dataformats-binary	Affected: 3.0.0 , ≤ 3.1.5 (maven) Affected: 3.2.0 , ≤ 3.2.1 (maven)

Credits

tinyb0y

Show details on NVD website

JSON

To clipboard

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CVE-2026-68496 (GCVE-0-2026-68496)

Vulnerability from cvelistv5 – Published: 2026-10-01 17:36 – Updated: 2026-10-01 18:15

Title

jackson-dataformats-binary: Smile parser does not enforce StreamReadConstraints.maxNameLength, enabling memory-exhaustion denial of service

Summary

The Smile parser in FasterXML jackson-dataformats-binary never invokes StreamReadConstraints.validateNameLength() when decoding JSON object property names, so the maxNameLength limit is not enforced for this format. SmileParser._handleLongFieldName() grows its internal name buffer through an unconstrained _growArrayTo() call and performs no length validation. An attacker who can have a Smile document parsed may therefore embed a single property name of unbounded length; the parser buffers the whole name in memory before returning it, whatever maxNameLength is configured to. Because StreamReadConstraints.maxDocumentLength is also disabled by default, nothing else bounds the name under default settings, so the only limits are the attacker's upload capacity and available heap, leading to memory exhaustion and denial of service. No privileges beyond the ability to submit data to a parsing endpoint are required, and exploitation needs only that the bytes reach SmileFactory parsing, directly or through an ObjectMapper configured with the Smile module. jackson-core's own JSON parsers enforce maxNameLength incrementally during name decoding; this gap is specific to the binary formats. maxNameLength and validateNameLength were introduced in jackson-core 2.16.0, so releases before 2.16.0 do not contain the constraint that is left unenforced. This issue is tracked together with the CBOR parser defect in the same vendor advisory, GHSA-3v8f-v6vx-fmrm, which covers both binary formats. The Smile parser defect (jackson-dataformats-binary issue #726) is CVE-2026-68496; the CBOR parser defect (issue #725) is assigned CVE-2026-68495.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-01 18:15 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling
CWE-400 - Uncontrolled Resource Consumption

Assigner

HeroDevs mitre root Scorecard

References

4 references

URL	Tags
https://github.com/FasterXML/jackson-dataformats-…	vendor-advisory
https://github.com/FasterXML/jackson-dataformats-…	patch
https://www.cve.org/CVERecord?id=CVE-2026-68495	related
https://github.com/FasterXML/jackson-dataformats-…	release-notes

Impacted products

2 products

Vendor	Product	Version
FasterXML	jackson-dataformats-binary	Affected: 2.16.0 , ≤ 2.18.9 (maven) Affected: 2.19.0 , ≤ 2.21.5 (maven) Affected: 2.22.0 , ≤ 2.22.1 (maven)
FasterXML	jackson-dataformats-binary	Affected: 3.0.0 , ≤ 3.1.5 (maven) Affected: 3.2.0 , ≤ 3.2.1 (maven)

Credits

tinyb0y

Show details on NVD website

JSON

To clipboard

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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.

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.

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.

Action not permitted

OPENSUSE-SU-2026:11878-1

CVE-2026-68495 (GCVE-0-2026-68495)

CVE-2026-68496 (GCVE-0-2026-68496)

Tags

Sightings

Nomenclature

Related by attack behaviour