Vulnerability-Lookup

GHSA-CX44-FGG3-FCP4

Vulnerability from github – Published: 2026-07-06 15:30 – Updated: 2026-07-06 21:30

Details

Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol.

i_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read.

In a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service.

The same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.

Severity

7.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-13708"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-06T13:16:32Z",
    "severity": "HIGH"
  },
  "details": "Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol.\n\ni_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read.\n\nIn a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service.\n\nThe same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.",
  "id": "GHSA-cx44-fgg3-fcp4",
  "modified": "2026-07-06T21:30:37Z",
  "published": "2026-07-06T15:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13708"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tonycoz/imager/commit/9f1c485ca3ee15dc261549e11afb356866552c3a.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/TONYC/Imager-File-JPEG-1.003/source/Changes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/06/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-13708 (GCVE-0-2026-13708)

Vulnerability from cvelistv5 – Published: 2026-07-06 12:04 – Updated: 2026-07-06 18:53

Title

Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol

Summary

Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol. i_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read. In a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service. The same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

CPANSec

References

3 references

URL	Tags
https://github.com/tonycoz/imager/commit/9f1c485c…	patch
https://metacpan.org/release/TONYC/Imager-File-JP…	release-notes
http://www.openwall.com/lists/oss-security/2026/07/06/4

Impacted products

1 product

Vendor	Product	Version
TONYC	Imager::File::JPEG	Affected: 0 , < 1.003 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-06T18:38:13.622Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/06/4"
          }
        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
          {
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              "attackComplexity": "LOW",
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              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
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              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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              "content": {
                "id": "CVE-2026-13708",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "yes"
                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-06T18:53:48.057324Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
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      }
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    "cna": {
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          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
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          "product": "Imager::File::JPEG",
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          ],
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          "vendor": "TONYC",
          "versions": [
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              "version": "0",
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          "lang": "en",
          "value": "Upgrade to Imager::File::JPEG 1.003 or later, or to Imager 1.032 or later if the bundled copy is in use."
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      "source": {
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      },
      "timeline": [
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          "lang": "en",
          "time": "2026-07-01T00:00:00.000Z",
          "value": "Version 1.003 released with fix."
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      "title": "Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol",
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  "cveMetadata": {
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    "datePublished": "2026-07-06T12:04:10.659Z",
    "dateReserved": "2026-06-29T13:22:53.937Z",
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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.

Action not permitted

GHSA-CX44-FGG3-FCP4

CVE-2026-13708 (GCVE-0-2026-13708)

Tags

Sightings

Nomenclature