Vulnerability-Lookup

CVE-2026-19082 (GCVE-0-2026-19082)

Vulnerability from cvelistv5 – Published: 2026-08-07 17:56 – Updated: 2026-08-07 20:13

Title

Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags

Summary

Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags. copy_string_tags() computes an ASCII EXIF tag's length as `entry->size - 1` to strip the trailing NUL. A zero-count ASCII entry sets `entry->size` to 0, and the derived length reaches i_tags_add() as -1, which is interpreted as a request to call strlen(), scanning past the entry to the next NUL and copying those bytes into the tag. JPEG reaches this path via im_decode_exif(), as does the separate Imager::File::WEBP distribution, which is fixed by upgrading Imager. Any caller of Imager->read() on an attacker-supplied image with such an entry may receive an exif_* tag holding adjacent heap bytes instead of an empty string.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 18:21 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 63/100 over 297 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/tonycoz/imager/security/adviso…	vendor-advisory
https://github.com/tonycoz/imager/commit/24bde042…	patch
https://metacpan.org/release/TONYC/Imager-1.034/changes	release-notes
http://www.openwall.com/lists/oss-security/2026/08/07/6

Impacted products

1 product

Vendor	Product	Version	CPE status
TONYC	Imager	Affected: 0.45_02 , < 1.034 (custom)	guessed

Credits

Arpit Jain (arpitjain099)

Show details on NVD website

JSON

To clipboard

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          },
          {
            "lang": "es",
            "value": "Las versiones de Imager desde la 0.45_02 anteriores a la 1.034 para Perl pueden exponer bytes adyacentes del heap a trav\u00e9s de una lectura excesiva de \u201cstrlen()\u201d de entradas EXIF ASCII con conteo cero en \u201ccopy_string_tags\u201d.\n\n\u201ccopy_string_tags()\u201d calcula la longitud de una etiqueta EXIF ASCII como \u201centry  -\u003e  size - 1\u201d para eliminar el NUL final. Una entrada ASCII con conteo cero establece \u201centry  -\u003e  size\u201d en 0, y la longitud derivada llega a \u201ci_tags_add()\u201d como -1, lo que se interpreta como una solicitud para llamar a \u201cstrlen()\u201d, escaneando m\u00e1s all\u00e1 de la entrada hasta el siguiente NUL y copiando esos bytes en la etiqueta. JPEG alcanza esta ruta a trav\u00e9s de \u201cim_decode_exif()\u201d, al igual que la distribuci\u00f3n separada \u201cImager::File::WEBP\u201d, lo cual se soluciona actualizando Imager.\n\nCualquier llamador de \u201cImager  -\u003e  read()\u201d en una imagen proporcionada por el atacante con dicha entrada puede recibir una etiqueta \u201cexif_*\u201d que contiene bytes adyacentes del heap en lugar de una cadena vac\u00eda."
          }
        ],
        "id": "CVE-2026-19082",
        "lastModified": "2026-10-23T20:10:00.160",
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}

FKIE_CVE-2026-19082

Vulnerability from fkie_nvd - Published: 2026-08-07 18:17 - Updated: 2026-10-23 20:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/tonycoz/imager/commit/24bde0427a113264d53f45a9c29ae756d84c82fe.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/TONYC/Imager-1.034/changes
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/08/07/6
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Imager",
          "product": "Imager",
          "programFiles": [
            "imexif.c",
            "tags.c"
          ],
          "programRoutines": [
            {
              "name": "copy_string_tags"
            },
            {
              "name": "i_tags_add"
            }
          ],
          "repo": "https://github.com/tonycoz/imager",
          "vendor": "TONYC",
          "versions": [
            {
              "lessThan": "1.034",
              "status": "affected",
              "version": "0.45_02",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags.\n\ncopy_string_tags() computes an ASCII EXIF tag\u0027s length as `entry-\u003esize - 1` to strip the trailing NUL. A zero-count ASCII entry sets `entry-\u003esize` to 0, and the derived length reaches i_tags_add() as -1, which is interpreted as a request to call strlen(), scanning past the entry to the next NUL and copying those bytes into the tag. JPEG reaches this path via im_decode_exif(), as does the separate Imager::File::WEBP distribution, which is fixed by upgrading Imager.\n\nAny caller of Imager-\u003eread() on an attacker-supplied image with such an entry may receive an exif_* tag holding adjacent heap bytes instead of an empty string."
    },
    {
      "lang": "es",
      "value": "Las versiones de Imager desde la 0.45_02 anteriores a la 1.034 para Perl pueden exponer bytes adyacentes del heap a trav\u00e9s de una lectura excesiva de \u201cstrlen()\u201d de entradas EXIF ASCII con conteo cero en \u201ccopy_string_tags\u201d.\n\n\u201ccopy_string_tags()\u201d calcula la longitud de una etiqueta EXIF ASCII como \u201centry  -\u003e  size - 1\u201d para eliminar el NUL final. Una entrada ASCII con conteo cero establece \u201centry  -\u003e  size\u201d en 0, y la longitud derivada llega a \u201ci_tags_add()\u201d como -1, lo que se interpreta como una solicitud para llamar a \u201cstrlen()\u201d, escaneando m\u00e1s all\u00e1 de la entrada hasta el siguiente NUL y copiando esos bytes en la etiqueta. JPEG alcanza esta ruta a trav\u00e9s de \u201cim_decode_exif()\u201d, al igual que la distribuci\u00f3n separada \u201cImager::File::WEBP\u201d, lo cual se soluciona actualizando Imager.\n\nCualquier llamador de \u201cImager  -\u003e  read()\u201d en una imagen proporcionada por el atacante con dicha entrada puede recibir una etiqueta \u201cexif_*\u201d que contiene bytes adyacentes del heap en lugar de una cadena vac\u00eda."
    }
  ],
  "id": "CVE-2026-19082",
  "lastModified": "2026-10-23T20:10:00.160",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-19082",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-07T18:21:43.252440Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-07T18:17:11.363",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/tonycoz/imager/commit/24bde0427a113264d53f45a9c29ae756d84c82fe.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/TONYC/Imager-1.034/changes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/07/6"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}

UBUNTU-CVE-2026-19082 (CVE-2026-19082)

Vulnerability from osv_ubuntu – Published: 2026-08-07 18:17 – Updated: 2026-10-17 09:38 – Source website

Details

Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags. copy_string_tags() computes an ASCII EXIF tag's length as entry->size - 1 to strip the trailing NUL. A zero-count ASCII entry sets entry->size to 0, and the derived length reaches i_tags_add() as -1, which is interpreted as a request to call strlen(), scanning past the entry to the next NUL and copying those bytes into the tag. JPEG reaches this path via im_decode_exif(), as does the separate Imager::File::WEBP distribution, which is fixed by upgrading Imager. Any caller of Imager->read() on an attacker-supplied image with such an entry may receive an exif_* tag holding adjacent heap bytes instead of an empty string.

Severity

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-19082	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-19082	REPORT
	https://github.com/tonycoz/imager/commit/24bde042…	REPORT
	https://github.com/tonycoz/imager/security/adviso…	REPORT
	https://metacpan.org/release/TONYC/Imager-1.034/changes	REPORT
	http://www.openwall.com/lists/oss-security/2026/08/07/6	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.004+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.004+dfsg-1build1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.003+dfsg-1",
        "1.004+dfsg-1",
        "1.004+dfsg-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.006+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.006+dfsg-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.005+dfsg-2build1",
        "1.006+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.011+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.011+dfsg-1build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.011+dfsg-1",
        "1.011+dfsg-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.012+dfsg-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.012+dfsg-2build1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.012+dfsg-1build1",
        "1.012+dfsg-2",
        "1.012+dfsg-2build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.023+dfsg-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.023+dfsg-1build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.019+dfsg-2",
        "1.020+dfsg-1",
        "1.022+dfsg-1",
        "1.023+dfsg-1",
        "1.023+dfsg-1build1",
        "1.023+dfsg-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.035+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.035+dfsg-1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.029+dfsg-1",
        "1.031+dfsg-1",
        "1.033+dfsg-1",
        "1.035+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.029+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.029+dfsg-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.027+dfsg-1",
        "1.029+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags. copy_string_tags() computes an ASCII EXIF tag\u0027s length as `entry-\u003esize - 1` to strip the trailing NUL. A zero-count ASCII entry sets `entry-\u003esize` to 0, and the derived length reaches i_tags_add() as -1, which is interpreted as a request to call strlen(), scanning past the entry to the next NUL and copying those bytes into the tag. JPEG reaches this path via im_decode_exif(), as does the separate Imager::File::WEBP distribution, which is fixed by upgrading Imager. Any caller of Imager-\u003eread() on an attacker-supplied image with such an entry may receive an exif_* tag holding adjacent heap bytes instead of an empty string.",
  "id": "UBUNTU-CVE-2026-19082",
  "modified": "2026-10-17T09:38:06Z",
  "published": "2026-08-07T18:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-19082"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-19082"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/tonycoz/imager/commit/24bde0427a113264d53f45a9c29ae756d84c82fe.patch"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/TONYC/Imager-1.034/changes"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/07/6"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-19082"
  ]
}

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.

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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.
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CVE-2026-19082 (GCVE-0-2026-19082)

FKIE_CVE-2026-19082

UBUNTU-CVE-2026-19082 (CVE-2026-19082)

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