CVE-2026-29795

HIGH EPSS 9.2%
Published Mar 6, 20263mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Mar 6, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

stellar-xdr is a library and CLI containing types and functionality for working with Stellar XDR. Prior to version 25.0.1, StringM::from_str does not validate that the input length is within the declared maximum (MAX). Calling StringM::<N>::from_str(s) where s is longer than N bytes succeeds and returns an Ok value instead of Err(Error::LengthExceedsMax), producing a StringM that violates its length invariant. This affects any code that constructs StringM values from string input using FromStr (including str::parse), and relies on the type's maximum length constraint being enforced. An oversized StringM could propagate through serialization, validation, or other logic that assumes the invariant holds. This issue has been patched in version 25.0.1.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
9.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-770

Affected Products 1

VendorProductVersionRange
stellarstellar-xdr* <25.0.1

References 4

  • github.com https://github.com/stellar/rs-stellar-xdr/commit/1f840013c3e2fca0321fb844b048afa01d10dda6
    Patch
  • github.com https://github.com/stellar/rs-stellar-xdr/issues/499
    Issue Tracking
  • github.com https://github.com/stellar/rs-stellar-xdr/pull/500
    Issue TrackingPatch
  • github.com https://github.com/stellar/rs-stellar-xdr/security/advisories/GHSA-x57h-xx53-v53w
    MitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/stellar/rs-stellar-xdr/commit/1f840013c3e2fca0321fb844b048afa01d10dda6
    Patch
  • github.com https://github.com/stellar/rs-stellar-xdr/pull/500
    Issue TrackingPatch
  • github.com https://github.com/stellar/rs-stellar-xdr/security/advisories/GHSA-x57h-xx53-v53w
    MitigationPatchVendor Advisory