CVE-2026-42500

Panic when reading out of bound palette index in golang.org/x/image/bmp

cve-program · severity unknownEUVD CVSS 3.1 5.3 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 · Secondary 5.3 MEDIUMosv · severity unknownFixed by golang.org/x/image 0.41.0KEV status unknown

Original advisory

cve-program · CVE-2026-42500

Published

Decoding a paletted BMP file with an out-of-range palette index results in a panic when accessing pixels in the invalid image.

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euvd · EUVD-2026-33419

Published

Decoding a paletted BMP file with an out-of-range palette index results in a panic when accessing pixels in the invalid image.

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nvd · CVE-2026-42500

Published

Decoding a paletted BMP file with an out-of-range palette index results in a panic when accessing pixels in the invalid image.

Read the publisher's advisory

osv · GO-2026-5031

Published

Decoding a paletted BMP file with an out-of-range palette index results in a panic when accessing pixels in the invalid image.

Read the publisher's advisory

Affected versions, risk and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

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Risk history

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Advisory history

14 saved versions

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15 Nov 2026 13:05:54 UTC