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CVE-2026-59156 (GCVE-0-2026-59156)

Vulnerability from cvelistv5 – Published: 2026-09-18 15:34 – Updated: 2026-09-18 15:34
VLAI
Title
OpenImageIO: Unbounded recursion in FITS header parser leads to stack overflow
Summary
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted fits stream containing consecutive 2880-byte header blocks without the mandatory end keyword makes fitsinput::read_fits_header() call itself without a depth bound. repeated recursive parsing exhausts the application stack, resulting in denial of service. The affected implementation is identified by src/fits.imageio/fitsinput.cpp, FitsInput::read_fits_header(), END keyword, and 2880-byte FITS header blocks, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
AcademySoftwareFoundation OpenImageIO Affected: < 3.0.20.0
Affected: >= 3.1.0.0, < 3.1.15.0
Affected: >= 3.2.0.0-dev, < 3.2.0.3-beta1
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "OpenImageIO",
          "vendor": "AcademySoftwareFoundation",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.0.20.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.1.0.0, \u003c 3.1.15.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.2.0.0-dev, \u003c 3.2.0.3-beta1"
            }
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      ],
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          "value": "OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted fits stream containing consecutive 2880-byte header blocks without the mandatory end keyword makes fitsinput::read_fits_header() call itself without a depth bound. repeated recursive parsing exhausts the application stack, resulting in denial of service. The affected implementation is identified by src/fits.imageio/fitsinput.cpp, FitsInput::read_fits_header(), END keyword, and 2880-byte FITS header blocks, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1."
        }
      ],
      "metrics": [
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          "tags": [
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          "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xvwr-x6ch-v2fq"
        },
        {
          "name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5248",
          "tags": [
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          "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5248"
        },
        {
          "name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/b0de7d40d06eb4abc7ef14c1321a1a2a976d8c1c",
          "tags": [
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          "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/b0de7d40d06eb4abc7ef14c1321a1a2a976d8c1c"
        },
        {
          "name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0",
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          "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0"
        },
        {
          "name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0",
          "tags": [
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          "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0"
        }
      ],
      "source": {
        "advisory": "GHSA-xvwr-x6ch-v2fq",
        "discovery": "UNKNOWN"
      },
      "title": "OpenImageIO: Unbounded recursion in FITS header parser leads to stack overflow"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-59156",
    "datePublished": "2026-09-18T15:34:19.593Z",
    "dateReserved": "2026-07-02T16:50:27.887Z",
    "dateUpdated": "2026-09-18T15:34:19.593Z",
    "state": "PUBLISHED"
  },
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    "nvd": {
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                "vendor": "AcademySoftwareFoundation",
                "versions": [
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                    "version": "\u003c 3.0.20.0"
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          }
        ],
        "id": "CVE-2026-59156",
        "lastModified": "2026-09-18T16:17:06.980",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
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        "references": [
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            "source": "security-advisories@github.com",
            "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0"
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            "source": "security-advisories@github.com",
            "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0"
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        "vulnStatus": "Received",
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    }
  }
}



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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

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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.


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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.