CVE-2026-44348Public exploit

Service interruption via PDF-signing double free

Published May 14, 2026 · Updated May 14, 2026

Double free in PoDoFo 1.0.0 through 1.0.3 allows attackers to corrupt heap memory during PDF signing via a crafted PDF. compute_hash_to_sign frees buf after EVP_DigestUpdate, then an EVP_DigestFinal failure jumps to Error, where the nonnull pointer is freed again. The path requires user interaction and an improbable OpenSSL failure; the vendor identifies arbitrary code execution as the upper-bound consequence.

CVSS severity2.5
Low
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in PoDoFo 1.0.0 through 1.0.3 allows attackers to corrupt heap memory during PDF signing via a crafted PDF. compute_hash_to_sign frees buf after EVP_DigestUpdate, then an EVP_DigestFinal failure jumps to Error, where the nonnull pointer is freed again. The path requires user interaction and an improbable OpenSSL failure; the vendor identifies arbitrary code execution as the upper-bound consequence.

The record

CVE
CVE-2026-44348
Published
May 14, 2026
Updated
May 14, 2026
Vendor
PoDoFo Project
Product
PoDoFo
Classifications
CWE-415, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 14, 2026CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.0.0, < 1.0.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

PoDoFo Project · PoDoFoversion=>= 1.0.0, < 1.0.4

Published CVSS scores

2.5GitHubCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-415Double Free
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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