Vulnerability-Lookup

RHSA-2026:45783

Vulnerability from csaf_redhat - Published: 2026-07-25 23:19 - Updated: 2026-08-09 13:13

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Low

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: nodejs26: * nodejs26-26.5.0-1.5.hum1 (aarch64, x86_64) * nodejs26-bin-26.5.0-1.5.hum1 (noarch) * nodejs26-devel-26.5.0-1.5.hum1 (aarch64, x86_64) * nodejs26-docs-26.5.0-1.5.hum1 (noarch) * nodejs26-full-i18n-26.5.0-1.5.hum1 (aarch64, x86_64) * nodejs26-libs-26.5.0-1.5.hum1 (aarch64, x86_64) * nodejs26-npm-11.17.0-1.26.5.0.1.5.hum1 (noarch) * nodejs26-npm-bin-26.5.0-1.5.hum1 (noarch) * v8-14.6-devel-14.6.202.34-1.26.5.0.1.5.hum1 (aarch64, x86_64) * nodejs26-26.5.0-1.5.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.

CVE-2026-11525

A flaw was found in undici. When undici processes Set-Cookie headers, it incorrectly interprets the SameSite attribute, accepting partial matches instead of exact ones. This allows a malicious server to downgrade a cookie's SameSite policy to a less secure setting, potentially leading to unintended information disclosure or a weakening of security protections for the user.

3.7 (Low)


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

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:nodejs26-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:nodejs26-main@noarch	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:nodejs26-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:nodejs26-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Low

CVE-2026-48617

A flaw was found in Node.js. This vulnerability allows a bypass of the Permission Model enforcement due to path misvalidation within the `process.report.writeReport()` function. An attacker could exploit this to bypass intended security boundaries, potentially leading to unauthorized access to sensitive information or other confidentiality impacts under specific configurations.

2.9 (Low)


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

CWE-73 - External Control of File Name or Path

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:nodejs26-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:nodejs26-main@noarch	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:nodejs26-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:nodejs26-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Low

References

18 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:45783	self
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-11525	external
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/security/cve/CVE-2026-48617	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-11525	self
https://bugzilla.redhat.com/show_bug.cgi?id=2490008	external
https://www.cve.org/CVERecord?id=CVE-2026-11525	external
https://nvd.nist.gov/vuln/detail/CVE-2026-11525	external
https://cna.openjsf.org/security-advisories.html	external
https://github.com/nodejs/undici/security/advisor…	external
https://access.redhat.com/security/cve/CVE-2026-48617	self
https://bugzilla.redhat.com/show_bug.cgi?id=2490521	external
https://www.cve.org/CVERecord?id=CVE-2026-48617	external
https://nvd.nist.gov/vuln/detail/CVE-2026-48617	external
http://hackerone.com/reports/3692858	external
https://nodejs.org/en/blog/vulnerability/june-202…	external

JSON

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        "id": "CWE-1286",
        "name": "Improper Validation of Syntactic Correctness of Input"
      },
      "discovery_date": "2026-06-17T19:02:29.292011+00:00",
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          "category": "description",
          "text": "A flaw was found in undici. When undici processes Set-Cookie headers, it incorrectly interprets the SameSite attribute, accepting partial matches instead of exact ones. This allows a malicious server to downgrade a cookie\u0027s SameSite policy to a less secure setting, potentially leading to unintended information disclosure or a weakening of security protections for the user.",
          "title": "Vulnerability description"
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          "text": "undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header",
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          "date": "2026-07-25T23:19:32+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": [
            "Red Hat Hardened Images:nodejs26-main@aarch64",
            "Red Hat Hardened Images:nodejs26-main@noarch",
            "Red Hat Hardened Images:nodejs26-main@src",
            "Red Hat Hardened Images:nodejs26-main@x86_64"
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          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
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            "Red Hat Hardened Images:nodejs26-main@src",
            "Red Hat Hardened Images:nodejs26-main@x86_64"
          ]
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      "scores": [
        {
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            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Hardened Images:nodejs26-main@noarch",
            "Red Hat Hardened Images:nodejs26-main@src",
            "Red Hat Hardened Images:nodejs26-main@x86_64"
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          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header"
    },
    {
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      },
      "discovery_date": "2026-06-18T17:01:57.518340+00:00",
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          "text": "2490521"
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          "text": "A flaw was found in Node.js. This vulnerability allows a bypass of the Permission Model enforcement due to path misvalidation within the `process.report.writeReport()` function. An attacker could exploit this to bypass intended security boundaries, potentially leading to unauthorized access to sensitive information or other confidentiality impacts under specific configurations.",
          "title": "Vulnerability description"
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          "text": "nodejs: Node.js: Permission Model bypass via `process.report.writeReport()` path misvalidation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw affects Node.js\u0027s experimental Permission Model, a security feature that restricts filesystem, network, and process access when explicitly enabled via the --permission flag. Applications running with the default Node.js configuration (Permission Model not enabled) are not affected. When enabled, insufficient path validation in process.report.writeReport() could allow code running under a restricted permission scope to write a diagnostic report to a location outside the configured allow-list, resulting in low-severity information disclosure.",
          "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"
        }
      ],
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          "Red Hat Hardened Images:nodejs26-main@noarch",
          "Red Hat Hardened Images:nodejs26-main@src",
          "Red Hat Hardened Images:nodejs26-main@x86_64"
        ]
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-48617"
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          "summary": "RHBZ#2490521",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2490521"
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        },
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48617"
        },
        {
          "category": "external",
          "summary": "http://hackerone.com/reports/3692858",
          "url": "http://hackerone.com/reports/3692858"
        },
        {
          "category": "external",
          "summary": "https://nodejs.org/en/blog/vulnerability/june-2026-security-releases",
          "url": "https://nodejs.org/en/blog/vulnerability/june-2026-security-releases"
        }
      ],
      "release_date": "2026-06-18T16:21:12.097000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-25T23:19:32+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": [
            "Red Hat Hardened Images:nodejs26-main@aarch64",
            "Red Hat Hardened Images:nodejs26-main@noarch",
            "Red Hat Hardened Images:nodejs26-main@src",
            "Red Hat Hardened Images:nodejs26-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:45783"
        },
        {
          "category": "workaround",
          "details": "No workaround is available for applications that rely on the Permission Model to restrict process.report.writeReport() output paths. Users should upgrade to a fixed Node.js release (22.23.0, 24.17.0, or 26.3.1 and later) as they become available downstream.",
          "product_ids": [
            "Red Hat Hardened Images:nodejs26-main@aarch64",
            "Red Hat Hardened Images:nodejs26-main@noarch",
            "Red Hat Hardened Images:nodejs26-main@src",
            "Red Hat Hardened Images:nodejs26-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 2.9,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:nodejs26-main@aarch64",
            "Red Hat Hardened Images:nodejs26-main@noarch",
            "Red Hat Hardened Images:nodejs26-main@src",
            "Red Hat Hardened Images:nodejs26-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "nodejs: Node.js: Permission Model bypass via `process.report.writeReport()` path misvalidation"
    }
  ]
}

CVE-2026-11525 (GCVE-0-2026-11525)

Vulnerability from cvelistv5 – Published: 2026-06-17 17:31 – Updated: 2026-06-17 17:54

Title

undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching

Summary

Impact: When undici parses a Set-Cookie header, it accepts any SameSite attribute value that contains Strict, Lax, or None as a substring, rather than the case-insensitive exact match specified by RFC 6265. Non-spec values are silently mapped to one of the three standard tokens. For example, SameSite=NoneOfYourBusiness is parsed as None (the most permissive setting), and SameSite=StrictLax is parsed as Lax (a downgrade from Strict). Affected applications are those that consume Set-Cookie headers from server responses (for example via undici's fetch or proxy code paths) and then forward or rely on the parsed sameSite attribute. A malicious or non-compliant server can coerce the consumer's view of a cookie's SameSite policy to a weaker value, silently degrading the SameSite enforcement the cookie is supposed to provide. This was introduced in undici 5.15.0 when the cookies feature was added. Patches: Upgrade to undici v6.26.0, v7.28.0 or v8.5.0. Workarounds: After parsing a Set-Cookie header, validate that the resulting sameSite attribute is one of 'Strict', 'Lax', or 'None' (exact, case-insensitive) before forwarding or relying on it.

Severity

3.7 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-17 17:53 UTC

CWE

CWE-183 - Permissive List of Allowed Inputs

Assigner

openjs

References

2 references

URL	Tags
https://github.com/nodejs/undici/security/advisor…
https://cna.openjsf.org/security-advisories.html

Impacted products

1 product

Vendor	Product	Version
undici	undici	Affected: 0 , < 6.26.0 (semver) Unaffected: 6.26.0 (semver) Affected: 7.0.0 , < 7.28.0 (semver) Unaffected: 7.28.0 (semver) Affected: 8.0.0 , < 8.5.0 (semver) Unaffected: 8.5.0 (semver)

Credits

UlisesGascon KhafraDev mcollina tndud042713

Show details on NVD website

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CVE-2026-48617 (GCVE-0-2026-48617)

Vulnerability from cvelistv5 – Published: 2026-06-18 16:21 – Updated: 2026-06-18 18:34

Summary

A flaw in Node.js Permission Model enforcement allows Bypass via `process.report.writeReport()` Path Misvalidation. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

Severity

1.8 (Low)


                        
                          CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-18 18:27 UTC

CWE

CWE-284 - Improper Access Control - Generic

Assigner

hackerone

References

2 references

URL	Tags
https://nodejs.org/en/blog/vulnerability/june-202…
http://hackerone.com/reports/3692858

Impacted products

1 product

Vendor	Product	Version
nodejs	node	Affected: 22.22.3 , ≤ 22.22.3 (semver) Affected: 24.16.0 , ≤ 24.16.0 (semver) Affected: 26.3.0 , ≤ 26.3.0 (semver)

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.

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.

Action not permitted

RHSA-2026:45783

CVE-2026-11525 (GCVE-0-2026-11525)

CVE-2026-48617 (GCVE-0-2026-48617)

Tags

Sightings

Nomenclature