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        "dateReserved": "2026-03-13T15:02:00.628Z",
        "datePublished": "2026-05-19T19:22:07.743Z",
        "dateUpdated": "2026-07-15T01:07:45.388Z"
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            "title": "libheif: Heap-Buffer-Overflow Write in Grid Tile Chroma Compositing",
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                {
                    "name": "https://github.com/strukturag/libheif/security/advisories/GHSA-frfr-f3vg-2g6j",
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                    "name": "https://github.com/strukturag/libheif/releases/tag/v1.22.0",
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                    "url": "https://github.com/strukturag/libheif/releases/tag/v1.22.0"
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                    "vendor": "strukturag",
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                            "version": "< 1.22.0",
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                    "lang": "en",
                    "value": "libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (write) vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a chroma plane heap allocation by crafting a HEIF/AVIF file with a 1×4 grid of odd-height tiles. The overflow is triggered during normal image decoding with default build configuration. The written bytes are chroma (Cb/Cr) pixel values from the attacking tile, giving the attacker full control over the overflow content. This issue has been fixed in version 1.22.0."
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                "advisory": "GHSA-frfr-f3vg-2g6j",
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                                "timestamp": "2026-05-21T03:55:32.284407Z",
                                "id": "CVE-2026-32740",
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                                        "Exploitation": "none"
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                                        "Technical Impact": "total"
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                "descriptions": [
                    {
                        "lang": "en",
                        "value": "A flaw was found in libheif, a library for decoding and encoding HEIF and AVIF image files. This heap-buffer-overflow vulnerability allows a remote attacker to write arbitrary data beyond the intended memory boundary. By crafting a malicious HEIF/AVIF file with a specific grid tile configuration, an attacker could potentially achieve arbitrary code execution or cause a denial of service."
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                            "attackVector": "NETWORK",
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                            "baseScore": 8.8,
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                            "confidentialityImpact": "HIGH",
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                        "url": "https://access.redhat.com/security/cve/CVE-2026-32740"
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                        "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32740.json"
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                        "lang": "en",
                        "time": "2026-05-19T20:01:03.545Z",
                        "value": "Reported to Red Hat."
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                        "time": "2026-05-19T19:22:07.743Z",
                        "value": "Made public."
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                ],
                "title": "libheif: libheif: Arbitrary code execution or denial of service via crafted HEIF/AVIF file",
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