Vulnerability-Lookup

GHSA-CG4C-J43F-QCG7

Vulnerability from github – Published: 2026-06-29 18:31 – Updated: 2026-06-30 03:37

Details

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).

Severity

7.3 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-12912"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122"
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-29T17:16:28Z",
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  "id": "GHSA-cg4c-j43f-qcg7",
  "modified": "2026-06-30T03:37:14Z",
  "published": "2026-06-29T18:31:54Z",
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12912"
    },
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    },
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    },
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      "type": "CVSS_V3"
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}

CVE-2026-12912 (GCVE-0-2026-12912)

Vulnerability from cvelistv5 – Published: 2026-06-29 16:31 – Updated: 2026-07-01 12:04

Title

Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image

Summary

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

redhat

References

5 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-12912	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2492871	issue-trackingx_refsource_REDHAT
https://gitlab.com/libtiff/libtiff/-/merge_requests/873
https://gitlab.com/libtiff/libtiff/-/work_items/824
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Hardened Images	cpe:/a:redhat:hummingbird:1

Date Public

2026-04-16 00:00

Credits

Red Hat would like to thank Ariel Schön for reporting this issue.

Show details on NVD website

JSON

To clipboard

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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-CG4C-J43F-QCG7

CVE-2026-12912 (GCVE-0-2026-12912)

Tags

Sightings

Nomenclature