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CVE-2024-53856

rPGP Panics on Malformed Untrusted Input

7.5 HighFix available

rPGP is a pure Rust implementation of OpenPGP. Prior to 0.14.1, rPGP allows an attacker to trigger rpgp crashes by providing crafted data. This vulnerability is fixed in 0.14.1.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.47%Up 0.4 points since Dec 7, 2024
90%50%10%1%

What each source reports

CVE List Score used 7.5

rPGP Panics on Malformed Untrusted Input

rPGP is a pure Rust implementation of OpenPGP. Prior to 0.14.1, rPGP allows an attacker to trigger rpgp crashes by providing crafted data. This vulnerability is fixed in 0.14.1.

Record
CVE-2024-53856
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-130, CWE-148, CWE-617
Updated
2026-11-02
EUVDEUVD-2024-3456 7.5

rPGP is a pure Rust implementation of OpenPGP. Prior to 0.14.1, rPGP allows an attacker to trigger rpgp crashes by providing crafted data. This vulnerability is fixed in 0.14.1.

Record
EUVD-2024-3456
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-9rmp-2568-59rv 8.7

rPGP Panics on Malformed Untrusted Input

During a security audit, Radically Open Security discovered several reachable edge cases which allow an attacker to trigger rpgp crashes by providing crafted data.

Impact

When processing malformed input, rpgp can run into Rust panics which halt the program.

This can happen in the following scenarios:

  • Parsing OpenPGP messages from binary or armor format
  • Decrypting OpenPGP messages via decrypt_with_password()
  • Parsing or converting public keys
  • Parsing signed cleartext messages from armor format
  • Using malformed private keys to sign or encrypt

Given the affected components, we consider most attack vectors to be reachable by remote attackers during typical use cases of the rpgp library. The attack complexity is low since the malformed messages are generic, short, and require no victim-specific knowledge.

The result is a denial-of-service impact via program termination. There is no impact to confidentiality or integrity security properties.

Versions and Patches

All recent versions are affected by at least some of the above mentioned issues.

The vulnerabilities have been fixed with version 0.14.1. We recommend all users to upgrade to this version.

References

The security audit was made possible by the NLnet Foundation NGI Zero Core grant program for rpgp.

Record
GHSA-9rmp-2568-59rv
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-130, CWE-248, CWE-617
Updated
2026-11-02
NVD 7.5

rPGP is a pure Rust implementation of OpenPGP. Prior to 0.14.1, rPGP allows an attacker to trigger rpgp crashes by providing crafted data. This vulnerability is fixed in 0.14.1.

Record
CVE-2024-53856
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-130, CWE-148, CWE-617
Updated
2026-11-02
OSV 7.5

rPGP Panics on Malformed Untrusted Input

rPGP is a pure Rust implementation of OpenPGP. Prior to 0.14.1, rPGP allows an attacker to trigger rpgp crashes by providing crafted data. This vulnerability is fixed in 0.14.1.

Record
CVE-2024-53856
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-130, CWE-148, CWE-617
Updated
2026-11-02
OSVDEBIAN-CVE-2024-53856 7.5

rPGP is a pure Rust implementation of OpenPGP. Prior to 0.14.1, rPGP allows an attacker to trigger rpgp crashes by providing crafted data. This vulnerability is fixed in 0.14.1.

Record
DEBIAN-CVE-2024-53856
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVGHSA-9rmp-2568-59rv 8.7

rPGP Panics on Malformed Untrusted Input

During a security audit, Radically Open Security discovered several reachable edge cases which allow an attacker to trigger rpgp crashes by providing crafted data.

Impact

When processing malformed input, rpgp can run into Rust panics which halt the program.

This can happen in the following scenarios:

  • Parsing OpenPGP messages from binary or armor format
  • Decrypting OpenPGP messages via decrypt_with_password()
  • Parsing or converting public keys
  • Parsing signed cleartext messages from armor format
  • Using malformed private keys to sign or encrypt

Given the affected components, we consider most attack vectors to be reachable by remote attackers during typical use cases of the rpgp library. The attack complexity is low since the malformed messages are generic, short, and require no victim-specific knowledge.

The result is a denial-of-service impact via program termination. There is no impact to confidentiality or integrity security properties.

Versions and Patches

All recent versions are affected by at least some of the above mentioned issues.

The vulnerabilities have been fixed with version 0.14.1. We recommend all users to upgrade to this version.

References

The security audit was made possible by the NLnet Foundation NGI Zero Core grant program for rpgp.

Record
GHSA-9rmp-2568-59rv
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-130, CWE-248, CWE-617
Updated
2026-11-02
OSVRUSTSEC-2024-0447 7.5

Panics on Malformed Untrusted Input

During a security audit, Radically Open Security discovered several reachable edge cases which allow an attacker to trigger rpgp crashes by providing crafted data.

Impact

When processing malformed input, rpgp can run into Rust panics which halt the program.

This can happen in the following scenarios:

  • Parsing OpenPGP messages from binary or armor format
  • Decrypting OpenPGP messages via decrypt_with_password()
  • Parsing or converting public keys
  • Parsing signed cleartext messages from armor format
  • Using malformed private keys to sign or encrypt

Given the affected components, we consider most attack vectors to be reachable by remote attackers during typical use cases of the rpgp library. The attack complexity is low since the malformed messages are generic, short, and require no victim-specific knowledge.

The result is a denial-of-service impact via program termination. There is no impact to confidentiality or integrity security properties.

Versions and Patches

All recent versions are affected by at least some of the above mentioned issues.

The vulnerabilities have been fixed with version 0.14.1. We recommend all users to upgrade to this version.

References

The security audit was made possible by the NLnet Foundation NGI Zero Core grant program for rpgp.

Record
RUSTSEC-2024-0447
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
pgp
crates.io
before 0.14.1
0.14.1
rust-pgp
Debian:13
before 0.14.2-1
0.14.2-1
rust-pgp
Debian:14
before 0.14.2-1
0.14.2-1
pgp
crates.io
0.0.0-0 up to 0.14.1
0.14.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-53856 is a high vulnerability (CVSS 7.5) in Rpgp, published December 5, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. Fixed in pgp 0.14.1.

References

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