8.7

CVE-2026-112405: Pillow: NULL pointer dereference in Image.merge via an unvalidated band 0

Analyzed
AliasesDEBIAN-CVE-2026-112405GHSA-cp9v-662q-vvx9CGA-4rgf-c9m8-v334
Published 19-10-2026Last modified 20-10-2026

Vulnerability summary

CVE-2026-112405 is a high (CVSS 8.7) NULL Pointer Dereference vulnerability in python-pillow pillow. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 48.4% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
8.7/10
010
High · v4.0 (CVE.org)
EPSS score
0.59%
0%100%
Low · Change unavailable
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
SUSE-SU-2026:5038-1

Timeline

  1. 19-10-2026
    PublishedVulnerability first disclosed.
  2. 20-10-2026
    Last modifiedVulnerability information updated.

Description

Pillow is a Python imaging library. From 12.0.0 until 13.0.0, Pillow's Image.merge() can dereference a null image8 plane. Validation skips the first input band, allowing a 32-bit integer or floating-point image backed by image32 storage to be merged as a narrower multiband image. A crafted IPTC file can reach this path when an application opens and loads it, or a caller can invoke Image.merge() directly with such a first band. This causes a native process crash. This issue is fixed in version 13.0.0.

CVSS metrics

9 scores · 7 sources · 2 versions

EPSS trend

Probability

0.59%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

20-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Pillow

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard23 products
  • apache-beam-python-3.12-sdkAll versions (No fix recorded) | < 2.77.0-r5
  • mlflowAll versions (No fix recorded) | < 3.17.2-r2
  • mlflow-fipsAll versions (No fix recorded) | < 3.17.2-r3
  • nemo-gymAll versions (No fix recorded) | < 0.5.0_rc0_git20260729-r6
  • nemo-rl-cuda-13.0-automodelAll versions (No fix recorded)
Wolfi6 products
  • mlflowAll versions (No fix recorded)
  • open-webuiAll versions (No fix recorded) | < 0.12.3-r6
  • py3.10-pillowAll versions (No fix recorded)
  • py3.11-pillowAll versions (No fix recorded) | < 13.0.0-r0
  • py3.12-pillowAll versions (No fix recorded) | < 13.0.0-r0
Ubuntu2 products
  • pillowAll versions (No fix recorded)
  • pillow-python2All versions (No fix recorded)
Debian1 product
  • pillowAll versions (No fix recorded)
PyPI1 product
  • pillow≥ 12.0.0, < 13.0.0
Python1 product
Python-pillow1 product

7 vendors · 35 products

References

9 links