CVE•Published 2026-10-19•Modified 2026-10-28•0 articles on news•5 live references•NVD data

CVE-2026-112898Python · Pillow

Vulnerability data via NVD (ingested)

CVSS v3.1

5.3

MEDIUM

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

EPSS percentile

Exploit Prediction Scoring System · top 68% of all CVEs

Weaknesses (CWE)

CWE-457Use of Uninitialized Variable

Description

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize() uses an empty palette. ImagingPaletteCacheUpdate() leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as output pixel indices. An attacker who controls the palette image can obtain stack contents from a returned PNG or GIF. This can disclose addresses and stack-canary data without an out-of-bounds access, memory corruption, or process crash. This issue is fixed in version 13.0.0.

Timeline

Published 2026-10-19

Modified 2026-10-28

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-112898

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Python Pillow"

All exposed Python Pillow instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Pillow"

HTTP body or banner mentions "Pillow" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-112898