Vulnerability-Lookup

RHSA-2026:26072

Vulnerability from csaf_redhat - Published: 2026-06-15 21:28 - Updated: 2026-06-16 09:37

Summary

Red Hat Security Advisory: Kiali 1.73.32 for Red Hat OpenShift Service Mesh 2.6

Severity

Important

Notes

Topic: Kiali 1.73.32 for Red Hat OpenShift Service Mesh 2.6 is now available. An update is now available for Red Hat OpenShift Service Mesh 2.6. This advisory contains the RPM packages for the Kiali component. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: Kiali 1.73.32, for Red Hat OpenShift Service Mesh 2.6, provides observability for the service mesh by offering a visual representation of the mesh topology and metrics, helping users monitor, trace, and manage efficiently. Security Fix(es): * CVE-2026-9277 openshift-service-mesh/kiali-rhel8: shell-quote: Arbitrary code execution via command injection due to unescaped line terminators (OSSM-13906) * CVE-2026-9277 openshift-service-mesh/kiali-ossmc-rhel8: shell-quote: Arbitrary code execution via command injection due to unescaped line terminators (OSSM-13905) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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-2026-9277

A flaw was found in the shell-quote component. The quote() function did not properly validate object-token inputs, allowing line terminators to pass unescaped into the output. A remote attacker could exploit this vulnerability by providing specially crafted input, which a POSIX shell would interpret as a command separator. This could lead to command injection, enabling the attacker to execute arbitrary code on the system.

8.1 (High)


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

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected products

Fixed 8 products

Product	Version	Remediation
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel8@sha256:1f41803cee88176e33d38072cdbbdee12a65ce3e277bcb86208589b15b8f5617_ppc64le	—	Vendor Fix fix
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel8@sha256:2e34b2e8093a73db6291d08f97c8d0024eae1501234d357106756b755c53c95f_arm64	—	Vendor Fix fix
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel8@sha256:5e8c9a77b41e4fb0b2ce4efc8202e157a9cc10eee21e3faa7b8fe99a378bea11_s390x	—	Vendor Fix fix
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel8@sha256:b5519a778cabdcb0e5be55a7623494dd375531a0b1ecc6510b0bf2ae831ab171_amd64	—	Vendor Fix fix
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-rhel8@sha256:0425fb2f7d03cb753a5320b4e0c5f37cb1475ca9b73f1a2dbff26c59f1729edf_amd64	—	Vendor Fix fix
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-rhel8@sha256:415828a4267fd071d4684ed15363916253441fd265e4fbc19eee79ae56af5e57_ppc64le	—	Vendor Fix fix
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-rhel8@sha256:53ba9d76efb63ba3c173162e6077d6e6e69ab35f6729e8d398b5c5e710bdc282_s390x	—	Vendor Fix fix
Unresolved product id: Red Hat OpenShift Service Mesh 2.6:registry.redhat.io/openshift-service-mesh/kiali-rhel8@sha256:9a87cf26aab9064de279d53d1d599a85f7e4d9a40c50ea6f427fd54e64c6379d_arm64	—	Vendor Fix fix

Threats

Impact Important

References

13 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:26072	self
https://access.redhat.com/security/cve/CVE-2026-9277	external
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/security/updates/classi…	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-9277	self
https://bugzilla.redhat.com/show_bug.cgi?id=2480741	external
https://www.cve.org/CVERecord?id=CVE-2026-9277	external
https://nvd.nist.gov/vuln/detail/CVE-2026-9277	external
https://github.com/ljharb/shell-quote	external
https://github.com/ljharb/shell-quote/commit/1518179	external
https://github.com/ljharb/shell-quote/security/ad…	external
https://www.npmjs.com/package/shell-quote	external

JSON

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          "category": "description",
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          "title": "Vulnerability description"
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          "title": "CVSS score applicability"
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    }
  ]
}

CVE-2026-9277 (GCVE-0-2026-9277)

Vulnerability from cvelistv5 – Published: 2026-05-22 13:22 – Updated: 2026-05-23 03:04

Title

shell-quote `quote()` does not validate object-token shapes, allowing command injection via line terminators in `.op`

Summary

shell-quote's `quote()` function did not validate object-token inputs against the operator model used by `parse()`. The `.op` field was backslash-escaped character by character using `/(.)/g`, which in JavaScript does not match line terminators (\n, \r, U+2028, U+2029). A line terminator in `.op` therefore passed through unescaped into the output; POSIX shells treat a literal newline as a command separator, so any content after it would execute as a second command. The vulnerable code path is reachable in two ways: (1) direct construction of `{ op: '...\n...' }` from external input, and (2) via `parse(cmd, envFn)` when `envFn` returns object tokens whose `.op` is attacker-influenced. Both are documented API surface. Fixed by replacing the per-character escape with strict shape validation: `.op` must match the parser's control-operator allowlist; `{ op: 'glob', pattern }` validates `pattern` and forbids line terminators; `{ comment }` validates `comment` and forbids line terminators; any other object shape throws `TypeError`.

Severity

8.1 (High)


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

9.2 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')

Assigner

harborist

References

5 references

URL	Tags
https://github.com/ljharb/shell-quote/security/ad…	vendor-advisory
https://github.com/ljharb/shell-quote/commit/1518179	patch
https://github.com/ljharb/shell-quote	product
https://www.npmjs.com/package/shell-quote	product
http://www.openwall.com/lists/oss-security/2026/05/23/2

Impacted products

1 product

Vendor	Product	Version
	shell-quote	Affected: 1.1.0 , < 1.8.4 (semver)

Credits

Akshat Sinha (@akshatgit) Jordan Harband (@ljharb)

Show details on NVD website

JSON

To clipboard

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            "vendor-advisory"
          ],
          "url": "https://github.com/ljharb/shell-quote/security/advisories/GHSA-w7jw-789q-3m8p"
        },
        {
          "name": "Fix commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/ljharb/shell-quote/commit/1518179"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/ljharb/shell-quote"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://www.npmjs.com/package/shell-quote"
        }
      ],
      "source": {
        "advisory": "GHSA-w7jw-789q-3m8p",
        "discovery": "EXTERNAL"
      },
      "title": "shell-quote `quote()` does not validate object-token shapes, allowing command injection via line terminators in `.op`"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7ffcee3d-2c14-4c3e-b844-86c6a321a158",
    "assignerShortName": "harborist",
    "cveId": "CVE-2026-9277",
    "datePublished": "2026-05-22T13:22:38.873Z",
    "dateReserved": "2026-05-22T12:13:25.893Z",
    "dateUpdated": "2026-05-23T03:04:40.537Z",
    "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.

Action not permitted

RHSA-2026:26072

CVE-2026-9277 (GCVE-0-2026-9277)

Tags

Sightings

Nomenclature