CVE-2026-33155Disclosure(qluster / deepdiff)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

DeepDiff is a project focused on Deep Difference and search of any Python data. From version 5.0.0 to before version 8.6.2, the pickle unpickler _RestrictedUnpickler validates which classes can be loaded but does not limit their constructor arguments. A few of the types in SAFE_TO_IMPORT have constructors that allocate memory proportional to their input (builtins.bytes, builtins.list, builtins.range). A 40-byte pickle payload can force 10+ GB of memory, which crashes applications that load delta objects or call pickle_load with untrusted data. This issue has been patched in version 8.6.2.

qluster CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Patch / fix

https://github.com/qlustered/deepdiff/commit/0d07ec21d12b46ef4e489383b363eadc22d990fb

Exploit / PoC references

https://github.com/qlustered/deepdiff/security/advisories/GHSA-54jj-px8x-5w5q

Weakness type (CWE)

CWE-400CWE-770

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

deepdiff

Threat summary

4 mentions across 3 observed days
Momentum state: stable

What's happening

Technical details provided in 4 signals
Disclosure: 3 classified signals
General: 1 classified signal
Peaked 2d ago at 2 mentions (2026-03-19); latest day: 1
4 total mentions across 3 days

Affected systems

Vendors

qluster

Products

deepdiff

Deep dive

Activity timeline4 mentions / 3d

Signal classification2 categories

Disclosure

375.0%

General

125.0%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-19	2	Disclosure2
2026-03-20	1	General1
2026-03-21	1	Disclosure1

Full discourse4 posts

Security Harvester@secharvesterx203d
Disclosure
we found a memory exhaustion CVE in a library downloaded 29 million times a month. AWS, DataHub, and Lightning AI are in the blast radius. https://www.periphery.security/blog/cve-2026-33155---40-bytes-to-chaos https://t.co/D8EHHfEQ4F
Post summary
The post announces a newly discovered memory exhaustion vulnerability in a widely‑used library, but does not provide PoC, exploit code, active exploitation evidence, or a patch announcement.
01011144
793 followersView on X
/r/netsec@_r_netsec203d
Disclosure
we found a memory exhaustion CVE in a library downloaded 29 million times a month. AWS, DataHub, and Lightning AI are in the blast radius. https://www.periphery.security/blog/cve-2026-33155---40-bytes-to-chaos
Post summary
The tweet announces the discovery of a memory exhaustion vulnerability (CVE‑2026‑33155) in a widely‑used library, underscoring its potential impact on several high‑profile cloud services, without providing exploitation details or mitigation guidance.
00003552
32.9K followersView on X
CVE@CVEnew201d
Disclosure
CVE-2026-33155 DeepDiff is a project focused on Deep Difference and search of any Python data. From version 5.0.0 to before version 8.6.2, the pickle unpickler _RestrictedUnpickler … https://www.cve.org/CVERecord?id=CVE-2026-33155
Post summary
The post announces CVE‑2026‑33155, describing a pickle unpickler vulnerability in DeepDiff versions 5.0.0 up to before 8.6.2, without providing PoC, exploit code, or patch information.
00000169
56.8K followersView on X
CyberDudeBivash® | Global Cybersecurity Company@cyberbivash202d
General
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-33155 - DeepDiff has Memory Exhaustion DoS through SAFE_TO_IMPORT Intel Report: https://ift.tt/MUFld6Z
Post summary
An alert announcing CVE‑2026‑33155 causes memory exhaustion DoS in DeepDiff, with no PoC, exploit, patch, or active exploitation details provided.
0000040
334 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	qluster	deepdiff	-	-	-

Explore more

Back to dashboard qluster CVEs deepdiff vulnerabilities

What researchers are saying

CVE-2026-33155

Security Harvester@secharvesterxDisclosure

The post announces a newly discovered memory exhaustion vulnerability in a widely‑used library, but does not provide PoC, exploit code, active exploitation evidence, or a patch announcement.

/r/netsec@_r_netsecDisclosure

The tweet announces the discovery of a memory exhaustion vulnerability (CVE‑2026‑33155) in a widely‑used library, underscoring its potential impact on several high‑profile cloud services, without providing exploitation details or mitigation guidance.

CVE@CVEnewDisclosure

The post announces CVE‑2026‑33155, describing a pickle unpickler vulnerability in DeepDiff versions 5.0.0 up to before 8.6.2, without providing PoC, exploit code, or patch information.

CyberDudeBivash® | Global Cybersecurity Company@cyberbivashGeneral

An alert announcing CVE‑2026‑33155 causes memory exhaustion DoS in DeepDiff, with no PoC, exploit, patch, or active exploitation details provided.