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Vulnerability record · CVE-2026-34977 · published 6 April 2026

CVE-2026-34977: Aperisolve os command injection vulnerability

Aperisolve · Aperisolve

Aperi'Solve is an open-source steganalysis web platform. In versions 3.1.3 through 3.2.0, when uploading a JPEG, a user can specify an optional password to accompany the JPEG. This password is then directly passed into an expect command, which is then subsequently passed into a bash -c command, without any form of sanitization or validation. An unauthenticated attacker can achieve root-level RCE inside the worker container with a single HTTP request, enabling full read/write access to all user-uploaded images, analysis results, and plaintext steganography passwords stored on disk. Because the container shares a Docker network with PostgreSQL and Redis (no authentication on either), the attacker can pivot to dump the entire database or manipulate the job queue to poison results for other users. If Docker socket mounting or host volume mounts are present, this could escalate to full host compromise. This would also include defacement of the website itself. This vulnerability is fixed in 3.2.1.

9.3 CVSS 4.0 Critical EPSS 1.2% · top 34.0% CWE-78 · OS command injection
9.3CVSS 4.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
23 Jun 2026Last modified by NVD

Description

Aperi'Solve is an open-source steganalysis web platform. In versions 3.1.3 through 3.2.0, when uploading a JPEG, a user can specify an optional password to accompany the JPEG. This password is then directly passed into an expect command, which is then subsequently passed into a bash -c command, without any form of sanitization or validation. An unauthenticated attacker can achieve root-level RCE inside the worker container with a single HTTP request, enabling full read/write access to all user-uploaded images, analysis results, and plaintext steganography passwords stored on disk. Because the container shares a Docker network with PostgreSQL and Redis (no authentication on either), the attacker can pivot to dump the entire database or manipulate the job queue to poison results for other users. If Docker socket mounting or host volume mounts are present, this could escalate to full host compromise. This would also include defacement of the website itself. This vulnerability is fixed in 3.2.1.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Zeecka/AperiSolve/blob/9fc388c629f86221bf2a265559eba5650d39fc29/aperisolve/analyzers/jpseek.py
https://github.com/Zeecka/AperiSolve/commit/0193ca4a7d8ae9d6ba6cde82d37a6f94953463b4 Patch
https://github.com/Zeecka/AperiSolve/pull/173
https://github.com/Zeecka/AperiSolve/pull/195 Patch
https://github.com/Zeecka/AperiSolve/releases/tag/3.1.3
https://github.com/Zeecka/AperiSolve/releases/tag/3.2.1 Release Notes
https://github.com/Zeecka/AperiSolve/security/advisories/GHSA-8r22-62p7-9jrp ExploitVendor Advisory
https://github.com/Zeecka/AperiSolve/security/advisories/GHSA-8r22-62p7-9jrp ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-34977), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.