RHSA-2026:10131

Vulnerability from csaf_redhat - Published: 2026-04-23 12:17 - Updated: 2026-05-02 03:25
Summary
Red Hat Security Advisory: RHTAS 1.3.4 - Red Hat Trusted Artifact Signer Release
Severity
Important
Notes
Topic: The 1.3.4 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.3
Details: The RHTAS Operator can be used with OpenShift Container Platform 4.16, 4.17, 4.18, 4.19, 4.20 and 4.21
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-2026-4427

No description is available for this CVE.

Vendor Fix Red Hat Trusted Artifact Signer simplifies cryptographic signing and verifying of software artifacts such as container images, binaries and source code changes. It is a self-managed on-premise deployment of the Sigstore project available at https://sigstore.dev Platform Engineers, Software Developers and Security Professionals may use RHTAS to ensure the integrity, transparency and assurance of their organization's software supply chain. For details on using the operator, refer to the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.3 You can find the release notes for this version of Red Hat Trusted Artifact Signer at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.3/html-single/release_notes/index https://access.redhat.com/errata/RHSA-2026:10131
CVE-2026-4800

A flaw was found in lodash. The fix for CVE-2021-23337 added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink. Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function().

8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Vendor Fix Red Hat Trusted Artifact Signer simplifies cryptographic signing and verifying of software artifacts such as container images, binaries and source code changes. It is a self-managed on-premise deployment of the Sigstore project available at https://sigstore.dev Platform Engineers, Software Developers and Security Professionals may use RHTAS to ensure the integrity, transparency and assurance of their organization's software supply chain. For details on using the operator, refer to the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.3 You can find the release notes for this version of Red Hat Trusted Artifact Signer at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.3/html-single/release_notes/index https://access.redhat.com/errata/RHSA-2026:10131
Workaround 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.
CVE-2026-33186

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 `:path` pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed `:path` that omits the mandatory leading slash. This allows the attacker to bypass defined security policies, potentially leading to unauthorized access to services or information disclosure.

9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Vendor Fix Red Hat Trusted Artifact Signer simplifies cryptographic signing and verifying of software artifacts such as container images, binaries and source code changes. It is a self-managed on-premise deployment of the Sigstore project available at https://sigstore.dev Platform Engineers, Software Developers and Security Professionals may use RHTAS to ensure the integrity, transparency and assurance of their organization's software supply chain. For details on using the operator, refer to the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.3 You can find the release notes for this version of Red Hat Trusted Artifact Signer at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.3/html-single/release_notes/index https://access.redhat.com/errata/RHSA-2026:10131
Workaround To mitigate this issue, implement infrastructure-level normalization to ensure all incoming HTTP/2 `:path` headers are properly formatted with a leading slash before reaching the gRPC-Go server. This can be achieved by configuring a reverse proxy or API gateway to validate and normalize the `:path` header. Ensure that any such intermediary is properly configured and restarted to apply the changes, which may temporarily impact service availability.
References
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            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-logserver-rhel9@sha256:523fa259ebf067ac3076748d4f5c86e01e5b1960034c0876add5d67b0ca21b0b_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-logsigner-rhel9@sha256:f211db01228530de8ed46b05189c492e6c3629df1098da57d31f2765a22ef014_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-redis-rhel9@sha256:22b8cfd123fdd66827b81f2431903198e33579906102b2f6295276cf3eb197a6_amd64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/timestamp-authority-rhel9@sha256:a4aae20d4d24fc780fd7f613a54c6587538007b23e2a84b826c6812a19abd9ed_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-database-rhel9@sha256:ab5c3e921b58d17bf6b596d2d7acf64a28b34f3f3a66720c1a07e6555ed9e0b8_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-logserver-rhel9@sha256:523fa259ebf067ac3076748d4f5c86e01e5b1960034c0876add5d67b0ca21b0b_amd64",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "lodash: lodash: Arbitrary code execution via untrusted input in template imports"
    },
    {
      "cve": "CVE-2026-33186",
      "cwe": {
        "id": "CWE-551",
        "name": "Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"
      },
      "discovery_date": "2026-03-20T23:02:27.802640+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/rekor-search-ui-rhel9@sha256:204dc28f6182267851d39eff08649e921877e2771d2c39acb798aa7896f5bcef_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-redis-rhel9@sha256:22b8cfd123fdd66827b81f2431903198e33579906102b2f6295276cf3eb197a6_amd64"
          ]
        }
      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2449833"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 `:path` pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed `:path` that omits the mandatory leading slash. This allows the attacker to bypass defined security policies, potentially leading to unauthorized access to services or information disclosure.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation",
          "title": "Vulnerability summary"
        },
        {
          "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"
        }
      ],
      "product_status": {
        "fixed": [
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          "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/fulcio-rhel9@sha256:2d478c389bc89afc6b331bc662a84dfc1bbb9da2681ab6dc5ad36f44c346699a_amd64",
          "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/rekor-backfill-redis-rhel9@sha256:35b00d6cc82f90b4577af0d2c15153e255d6bb946349bb85f175216cefad1d07_amd64",
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          "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/timestamp-authority-rhel9@sha256:a4aae20d4d24fc780fd7f613a54c6587538007b23e2a84b826c6812a19abd9ed_amd64",
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          "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-logserver-rhel9@sha256:523fa259ebf067ac3076748d4f5c86e01e5b1960034c0876add5d67b0ca21b0b_amd64",
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        "known_not_affected": [
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-33186"
        },
        {
          "category": "external",
          "summary": "RHBZ#2449833",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449833"
        },
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-33186",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-33186"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33186",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33186"
        },
        {
          "category": "external",
          "summary": "https://github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3",
          "url": "https://github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3"
        }
      ],
      "release_date": "2026-03-20T22:23:32.147000+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2026-04-23T12:17:52+00:00",
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            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/timestamp-authority-rhel9@sha256:a4aae20d4d24fc780fd7f613a54c6587538007b23e2a84b826c6812a19abd9ed_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-database-rhel9@sha256:ab5c3e921b58d17bf6b596d2d7acf64a28b34f3f3a66720c1a07e6555ed9e0b8_amd64",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:10131"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, implement infrastructure-level normalization to ensure all incoming HTTP/2 `:path` headers are properly formatted with a leading slash before reaching the gRPC-Go server. This can be achieved by configuring a reverse proxy or API gateway to validate and normalize the `:path` header. Ensure that any such intermediary is properly configured and restarted to apply the changes, which may temporarily impact service availability.",
          "product_ids": [
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            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-logserver-rhel9@sha256:523fa259ebf067ac3076748d4f5c86e01e5b1960034c0876add5d67b0ca21b0b_amd64",
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      "scores": [
        {
          "cvss_v3": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
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            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/fulcio-rhel9@sha256:2d478c389bc89afc6b331bc662a84dfc1bbb9da2681ab6dc5ad36f44c346699a_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/rekor-backfill-redis-rhel9@sha256:35b00d6cc82f90b4577af0d2c15153e255d6bb946349bb85f175216cefad1d07_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/rekor-search-ui-rhel9@sha256:204dc28f6182267851d39eff08649e921877e2771d2c39acb798aa7896f5bcef_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/rekor-server-rhel9@sha256:b4a5a2c2518dba5f7812c8b4112e25a0f867a4b187c23adfc727395f871c8ca6_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/timestamp-authority-rhel9@sha256:a4aae20d4d24fc780fd7f613a54c6587538007b23e2a84b826c6812a19abd9ed_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-database-rhel9@sha256:ab5c3e921b58d17bf6b596d2d7acf64a28b34f3f3a66720c1a07e6555ed9e0b8_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-logserver-rhel9@sha256:523fa259ebf067ac3076748d4f5c86e01e5b1960034c0876add5d67b0ca21b0b_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-logsigner-rhel9@sha256:f211db01228530de8ed46b05189c492e6c3629df1098da57d31f2765a22ef014_amd64",
            "Red Hat Trusted Artifact Signer 1.3:registry.redhat.io/rhtas/trillian-redis-rhel9@sha256:22b8cfd123fdd66827b81f2431903198e33579906102b2f6295276cf3eb197a6_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation"
    }
  ]
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.