Vulnerability-Lookup

OPENSUSE-SU-2026:20963-1

Vulnerability from csaf_opensuse - Published: 2026-06-12 18:24 - Updated: 2026-09-17 17:34

Summary

Security update for neonmodem

Severity

Important

Notes

Title of the patch: Security update for neonmodem

Description of the patch: This update for neonmodem fixes the following issues: Changes in neonmodem: - Update golang.org/x/net dependency to v0.55.0 due to bsc#1267193 - Update golang.org/x/image dependency to v0.38.0 due to bsc#1260727 - Update golang.org/x/term dependency to v0.42.0 due to bsc#1260727 - Update to version 1.0.7+git0.346d1d3: * Update dependencies, remove debug output * Update GitHub actions * discourse: APi fixes * Bump golang.org/x/net from 0.36.0 to 0.38.0 * Bump golang.org/x/net from 0.34.0 to 0.36.0 * Update dependencies * Change chat button - Add build option for position-independent executables

Patchnames: openSUSE-Leap-16.0-packagehub-319

CVE-2026-25680

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 4 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 16.0:neonmodem-0:1.0.7+git0.346d1d3-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:neonmodem-0:1.0.7+git0.346d1d3-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:neonmodem-0:1.0.7+git0.346d1d3-bp160.1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:neonmodem-0:1.0.7+git0.346d1d3-bp160.1.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2026-25681

6.1 (Medium)


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

Affected products

Recommended 4 products, the same list as for CVE-2026-25680

Threats

Impact important

CVE-2026-27136

6.1 (Medium)


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

Affected products

Recommended 4 products, the same list as for CVE-2026-25680

Threats

Impact important

CVE-2026-33809

Affected products

Recommended 4 products, the same list as for CVE-2026-25680

Threats

Impact moderate

CVE-2026-42502

6.1 (Medium)


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

Affected products

Recommended 4 products, the same list as for CVE-2026-25680

Threats

Impact important

CVE-2026-42506

6.1 (Medium)


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

Affected products

Recommended 4 products, the same list as for CVE-2026-25680

Threats

Impact important

References

22 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://bugzilla.suse.com/1260727	self
https://bugzilla.suse.com/1267193	self
https://www.suse.com/security/cve/CVE-2026-25680/	self
https://www.suse.com/security/cve/CVE-2026-25681/	self
https://www.suse.com/security/cve/CVE-2026-27136/	self
https://www.suse.com/security/cve/CVE-2026-33809/	self
https://www.suse.com/security/cve/CVE-2026-42502/	self
https://www.suse.com/security/cve/CVE-2026-42506/	self
https://www.suse.com/security/cve/CVE-2026-25680	external
https://bugzilla.suse.com/1267044	external
https://www.suse.com/security/cve/CVE-2026-25681	external
https://bugzilla.suse.com/1267044	external
https://www.suse.com/security/cve/CVE-2026-27136	external
https://bugzilla.suse.com/1267044	external
https://www.suse.com/security/cve/CVE-2026-33809	external
https://bugzilla.suse.com/1260692	external
https://www.suse.com/security/cve/CVE-2026-42502	external
https://bugzilla.suse.com/1267044	external
https://www.suse.com/security/cve/CVE-2026-42506	external
https://bugzilla.suse.com/1267044	external

JSON

To clipboard

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CVE-2026-25680 (GCVE-0-2026-25680)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:00

Title

Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html

Summary

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-22 17:00 UTC

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/cl/781702
https://go.dev/issue/79573
https://groups.google.com/g/golang-announce/c/iI-…
https://pkg.go.dev/vuln/GO-2026-5028

Impacted products

1 product

Vendor	Product	Version
golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

IPC Labs

Show details on NVD website

JSON

To clipboard

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CVE-2026-25681 (GCVE-0-2026-25681)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:46

Title

Invoking incorrect handling of character references in DOCTYPE nodes in golang.org/x/net/html

Summary

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Severity

6.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-22 17:46 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/79574
https://groups.google.com/g/golang-announce/c/iI-…
https://go.dev/cl/781703
https://pkg.go.dev/vuln/GO-2026-5029

Impacted products

1 product

Vendor	Product	Version
golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

ensy

Show details on NVD website

JSON

To clipboard

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CVE-2026-27136 (GCVE-0-2026-27136)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 16:59

Title

Invoking duplicate attributes can cause XSS in golang.org/x/net/html

Summary

Severity

6.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-22 16:59 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/79575
https://groups.google.com/g/golang-announce/c/iI-…
https://go.dev/cl/781685
https://pkg.go.dev/vuln/GO-2026-5030

Impacted products

1 product

Vendor	Product	Version
golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

ensy

Show details on NVD website

JSON

To clipboard

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              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-27136",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-22T16:59:35.355098Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-22T16:59:52.807Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/net/html",
          "product": "golang.org/x/net/html",
          "programRoutines": [
            {
              "name": "parser.parse"
            },
            {
              "name": "Parse"
            },
            {
              "name": "ParseFragment"
            },
            {
              "name": "ParseFragmentWithOptions"
            },
            {
              "name": "ParseWithOptions"
            }
          ],
          "vendor": "golang.org/x/net",
          "versions": [
            {
              "lessThan": "0.55.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ensy"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T15:01:22.111Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/79575"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"
        },
        {
          "url": "https://go.dev/cl/781685"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5030"
        }
      ],
      "title": "Invoking  duplicate attributes can cause XSS in golang.org/x/net/html"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-27136",
    "datePublished": "2026-05-22T15:01:22.111Z",
    "dateReserved": "2026-02-17T19:57:28.434Z",
    "dateUpdated": "2026-05-22T16:59:52.807Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-33809 (GCVE-0-2026-33809)

Vulnerability from cvelistv5 – Published: 2026-03-25 18:24 – Updated: 2026-04-06 21:12

Title

OOM from malicious IFD offset in golang.org/x/image/tiff

Summary

A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or an out-of-memory error.

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-25 20:05 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Go Google root

References

3 references

URL	Tags
https://go.dev/cl/757660
https://go.dev/issue/78267
https://pkg.go.dev/vuln/GO-2026-4815

Impacted products

1 product

Vendor	Product	Version
golang.org/x/image	golang.org/x/image/tiff	Affected: 0 , < 0.38.0 (semver)

Credits

Andy Gill, ZephrSec Ltd

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-33809",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-25T20:05:32.763729Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-25T20:05:50.620Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/image/tiff",
          "product": "golang.org/x/image/tiff",
          "programRoutines": [
            {
              "name": "buffer.fill"
            },
            {
              "name": "buffer.ReadAt"
            },
            {
              "name": "Decode"
            },
            {
              "name": "DecodeConfig"
            },
            {
              "name": "buffer.Slice"
            }
          ],
          "vendor": "golang.org/x/image",
          "versions": [
            {
              "lessThan": "0.38.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Andy Gill, ZephrSec Ltd"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or an out-of-memory error."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-06T21:12:56.092Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/757660"
        },
        {
          "url": "https://go.dev/issue/78267"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4815"
        }
      ],
      "title": "OOM from malicious IFD offset in golang.org/x/image/tiff"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-33809",
    "datePublished": "2026-03-25T18:24:04.222Z",
    "dateReserved": "2026-03-23T20:35:32.813Z",
    "dateUpdated": "2026-04-06T21:12:56.092Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42502 (GCVE-0-2026-42502)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:17

Title

Invoking incorrect handling of HTML elements in foreign content in golang.org/x/net/html

Summary

Severity

6.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-22 17:16 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/79572
https://groups.google.com/g/golang-announce/c/iI-…
https://go.dev/cl/781701
https://pkg.go.dev/vuln/GO-2026-5027

Impacted products

1 product

Vendor	Product	Version
golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

Tristan Madani

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-42502",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-22T17:16:33.414557Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-22T17:17:20.637Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/net/html",
          "product": "golang.org/x/net/html",
          "programRoutines": [
            {
              "name": "parser.parse"
            },
            {
              "name": "Parse"
            },
            {
              "name": "ParseFragment"
            },
            {
              "name": "ParseFragmentWithOptions"
            },
            {
              "name": "ParseWithOptions"
            }
          ],
          "vendor": "golang.org/x/net",
          "versions": [
            {
              "lessThan": "0.55.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Tristan Madani"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T15:01:21.649Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/79572"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"
        },
        {
          "url": "https://go.dev/cl/781701"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5027"
        }
      ],
      "title": "Invoking  incorrect handling of HTML elements in foreign content in golang.org/x/net/html"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-42502",
    "datePublished": "2026-05-22T15:01:21.649Z",
    "dateReserved": "2026-04-28T00:21:12.791Z",
    "dateUpdated": "2026-05-22T17:17:20.637Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42506 (GCVE-0-2026-42506)

Vulnerability from cvelistv5 – Published: 2026-05-22 15:01 – Updated: 2026-05-22 17:45

Title

Invoking incorrect handling of namespaced elements in foreign content in golang.org/x/net/html

Summary

Severity

6.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-22 17:45 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/79571
https://groups.google.com/g/golang-announce/c/iI-…
https://go.dev/cl/781700
https://pkg.go.dev/vuln/GO-2026-5025

Impacted products

1 product

Vendor	Product	Version
golang.org/x/net	golang.org/x/net/html	Affected: 0 , < 0.55.0 (semver)

Credits

ensy

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-42506",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-22T17:45:29.886387Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-22T17:45:49.989Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/net/html",
          "product": "golang.org/x/net/html",
          "programRoutines": [
            {
              "name": "parser.parse"
            },
            {
              "name": "Parse"
            },
            {
              "name": "ParseFragment"
            },
            {
              "name": "ParseFragmentWithOptions"
            },
            {
              "name": "ParseWithOptions"
            }
          ],
          "vendor": "golang.org/x/net",
          "versions": [
            {
              "lessThan": "0.55.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ensy"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T15:01:21.056Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
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        {
          "url": "https://go.dev/issue/79571"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"
        },
        {
          "url": "https://go.dev/cl/781700"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5025"
        }
      ],
      "title": "Invoking  incorrect handling of namespaced elements in foreign content in golang.org/x/net/html"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-42506",
    "datePublished": "2026-05-22T15:01:21.056Z",
    "dateReserved": "2026-04-28T00:21:12.792Z",
    "dateUpdated": "2026-05-22T17:45:49.989Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-2026:20963-1

CVE-2026-25680 (GCVE-0-2026-25680)

CVE-2026-25681 (GCVE-0-2026-25681)

CVE-2026-27136 (GCVE-0-2026-27136)

CVE-2026-33809 (GCVE-0-2026-33809)

CVE-2026-42502 (GCVE-0-2026-42502)

CVE-2026-42506 (GCVE-0-2026-42506)

Tags

Sightings

Nomenclature

Related by attack behaviour