VulnSocial

CVE-2026-42310Disclosure(python / pillow)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch python pillow systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references
Weakness type (CWE)
CWE-835

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • pillow

Threat summary

  • Patch or workaround signal is available
  • 4 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 4 signals
  • Disclosure: 3 classified signals
  • Peaked 2d ago at 2 mentions (2026-05-09); latest day: 1
  • 4 total mentions across 3 days

Affected systems

Vendors
python
Products
pillow

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-05-09: 2Mentions · 2026-05-11: 1Mentions · 2026-06-02: 1Patch / Workaround · 2026-06-02: 1Technical Details · 2026-05-09: 2Technical Details · 2026-05-11: 1Technical Details · 2026-06-02: 105-0905-1106-02
Signal classification2 categories
Disclosure
375.0%
Patch
125.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-05-092
Disclosure2
2026-05-111
Disclosure1
2026-06-021
Patch1
Full discourse4 posts
  • ThreatCluster@threatcluster
    Patch

    BREAKING: SUSE ships fixes for 9 CVEs in python-Pillow and CUPS, including DoS bugs CVE-2026-42310 and CVE-2026-39314, impacting SUSE Linux Enterprise Server deployments. https://threatcluster.io/cluster/suse-security-updates-address-multiple-denial-of-service-vul-2002e1f3

    Post summary

    SUSE has released patches for nine CVEs in python‑Pillow and CUPS, including two denial‑of‑service bugs (CVE‑2026‑42310 and CVE‑2026‑39314), advising SUSE Linux Enterprise Server users to apply updates.

    0000053
    294 followersView on X
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-42310 📊 Severity: 5.1 🚨 Risk Level: Medium 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-42310 #CVE-2026-42310 #CVE #Medium #CyberSecurity #InfoSec https://t.co/vuxnaFFwDr

    Post summary

    Announcement of a new CVE-2026-42310 with a medium severity score of 5.1, affecting unspecified products; no PoC, exploit, or patch details are provided.

    0000032
    157 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-42310 Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, … https://www.cve.org/CVERecord?id=CVE-2026-42310

    Post summary

    CVE-2026-42310 is a DoS flaw in Pillow 4.2.0–12.1.x where malicious PDFs can hang processes; no PoC, exploit, or patch details are offered.

    0000051
    57.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-42310 Denial of Service via Malicious PDF in Pillow 4.2.0 Through 12.1.x https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42310

    Post summary

    The tweet announces CVE-2026-42310, a denial‑of‑service vulnerability in Pillow caused by malicious PDFs across versions 4.2.0 to 12.1.x, but offers no PoC, exploit code, patch info, or evidence of active exploitation.

    0000049
    4.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apppythonpillow---

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