Vulnerability-Lookup

OPENSUSE-SU-2026:11673-1

Vulnerability from csaf_opensuse - Published: 2026-09-02 00:00 - Updated: 2026-09-17 17:22

Summary

opencode-1.18.26-1.1 on GA media

Severity

Moderate

Notes

Title of the patch: opencode-1.18.26-1.1 on GA media

Description of the patch: These are all security issues fixed in the opencode-1.18.26-1.1 package on the GA media of openSUSE Tumbleweed.

Patchnames: openSUSE-Tumbleweed-2026-11673

CVE-2026-23736

9.8 (Critical)


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

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: openSUSE Tumbleweed:opencode-0:1.18.26-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:opencode-0:1.18.26-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:opencode-0:1.18.26-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:opencode-0:1.18.26-1.1.x86_64	—	Vendor Fix

Threats

Impact critical

CVE-2026-23737

Affected products

Recommended 4 products, the same list as for CVE-2026-23736

Threats

Impact important

CVE-2026-59940

Affected products

Recommended 4 products, the same list as for CVE-2026-23736

Threats

Impact critical

References

11 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-2026-23736/	self
https://www.suse.com/security/cve/CVE-2026-23737/	self
https://www.suse.com/security/cve/CVE-2026-59940/	self
https://www.suse.com/security/cve/CVE-2026-23736	external
https://bugzilla.suse.com/1257095	external
https://www.suse.com/security/cve/CVE-2026-23737	external
https://bugzilla.suse.com/1257096	external
https://www.suse.com/security/cve/CVE-2026-59940	external
https://bugzilla.suse.com/1272878	external

JSON

To clipboard

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          "text": "seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, due to improper input validation, a malicious object key can lead to prototype pollution during JSON deserialization. This vulnerability affects only JSON deserialization functionality. This issue is fixed in version 1.4.1.",
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          "category": "general",
          "text": "seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, improper input handling in the JSON deserialization component can lead to arbitrary JavaScript code execution. Exploitation is possible via overriding constant value and error deserialization, allowing indirect access to unsafe JS evaluation. At minimum, attackers need the ability to perform 4 separate requests on the same function, and partial knowledge of how the serialized data is used during later runtime processing. This vulnerability affects the fromJSON and fromCrossJSON functions in a client-to-server transmission scenario. This issue has been fixed in version 1.4.0.",
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          "text": "Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.5.3, seroval.fromJSON() allows attacker-controlled JSON Promise control nodes to operate on values from the general deserialization reference table without verifying genuine internal Promise resolver records, causing deserialization side effects with plugins enabled and potentially unintended server-side invocation or remote code execution when downstream frameworks register callable wrappers. This issue is fixed in version 1.5.3.",
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}

CVE-2026-23736 (GCVE-0-2026-23736)

Vulnerability from cvelistv5 – Published: 2026-01-21 23:01 – Updated: 2026-01-22 14:45

Title

seroval Affected by Prototype Pollution via JSON Deserialization

Summary

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, due to improper input validation, a malicious object key can lead to prototype pollution during JSON deserialization. This vulnerability affects only JSON deserialization functionality. This issue is fixed in version 1.4.1.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-22 14:45 UTC

CWE

CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/lxsmnsyc/seroval/security/advi…	x_refsource_CONFIRM
https://github.com/lxsmnsyc/seroval/commit/ce9408…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
lxsmnsyc	seroval	Affected: < 1.4.1

Show details on NVD website

JSON

To clipboard

{
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        "metrics": [
          {
            "other": {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-22T14:45:46.259826Z",
                "version": "2.0.3"
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            "availabilityImpact": "LOW",
            "baseScore": 7.3,
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            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
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      "source": {
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        "discovery": "UNKNOWN"
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      "title": "seroval Affected by Prototype Pollution via JSON Deserialization"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-23737 (GCVE-0-2026-23737)

Vulnerability from cvelistv5 – Published: 2026-01-21 23:09 – Updated: 2026-01-22 21:55

Title

seroval Affected by Remote Code Execution via JSON Deserialization

Summary

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, improper input handling in the JSON deserialization component can lead to arbitrary JavaScript code execution. Exploitation is possible via overriding constant value and error deserialization, allowing indirect access to unsafe JS evaluation. At minimum, attackers need the ability to perform 4 separate requests on the same function, and partial knowledge of how the serialized data is used during later runtime processing. This vulnerability affects the fromJSON and fromCrossJSON functions in a client-to-server transmission scenario. This issue has been fixed in version 1.4.0.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-22 21:54 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/lxsmnsyc/seroval/security/advi…	x_refsource_CONFIRM
https://github.com/lxsmnsyc/seroval/commit/ce9408…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
lxsmnsyc	seroval	Affected: < 1.4.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23737",
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                    "Technical Impact": "total"
                  }
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                "timestamp": "2026-01-22T21:54:58.352664Z",
                "version": "2.0.3"
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        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "HIGH",
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
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          ],
          "url": "https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-3rxj-6cgf-8cfw"
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          "name": "https://github.com/lxsmnsyc/seroval/commit/ce9408ebc87312fcad345a73c172212f2a798060",
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      "title": "seroval Affected by Remote Code Execution via JSON Deserialization"
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CVE-2026-59940 (GCVE-0-2026-59940)

Vulnerability from cvelistv5 – Published: 2026-08-18 14:34 – Updated: 2026-08-18 15:49

Title

Seroval: `seroval.fromJSON()` Promise resolver type confusion invokes attacker-controlled methods during deserialization

Summary

Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.5.3, seroval.fromJSON() allows attacker-controlled JSON Promise control nodes to operate on values from the general deserialization reference table without verifying genuine internal Promise resolver records, causing deserialization side effects with plugins enabled and potentially unintended server-side invocation or remote code execution when downstream frameworks register callable wrappers. This issue is fixed in version 1.5.3.

Severity

9.8 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 15:49 UTC

CWE

CWE-502 - Deserialization of Untrusted Data
CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/lxsmnsyc/seroval/security/advi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
lxsmnsyc	seroval	Affected: < 1.5.3

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-59940",
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                  },
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                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T15:49:53.645084Z",
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              },
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          "product": "seroval",
          "vendor": "lxsmnsyc",
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          ]
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        {
          "lang": "en",
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        }
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            "attackComplexity": "LOW",
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          ]
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        {
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              "description": "CWE-843: Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
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        "discovery": "UNKNOWN"
      },
      "title": "Seroval: `seroval.fromJSON()` Promise resolver type confusion invokes attacker-controlled methods during deserialization"
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  },
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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.

Detection rules are retrieved from Rulezet.

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-2026:11673-1

CVE-2026-23736 (GCVE-0-2026-23736)

CVE-2026-23737 (GCVE-0-2026-23737)

CVE-2026-59940 (GCVE-0-2026-59940)

Tags

Sightings

Nomenclature

Related by attack behaviour