CVE-2026-113705

a2aproject a2a-rs error.rs information exposure

CVSS score

6.9

EPSS probability

—

Risk score

0.7

Published

4 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2026-113705: a2aproject a2a-rs Information Exposure Vulnerability

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

A vulnerability exists in a2aproject a2a-rs up to version 0.4.3, leading to information exposure through error messages. This remotely executable issue is associated with CWE-200 and CWE-209.

Why does it matter?

This security flaw allows remote attacks without authentication to leak sensitive information. Applying the available patch is necessary to remediate the issue.

What should be done?

Apply patch 713b943af94ab2d521d483b841618b97a2e78a4d
Review the corresponding pull request references
Follow vendor advisories

Chain of evidence and sources2 verified claims

a2aproject a2a-rs sürümleri 0.4.3 ve öncesi bilgi ifşası zafiyetinden etkilenmektedir.

S0 · daybreach-canonical S1 · cvelist

Sorun 713b943af94ab2d521d483b841618b97a2e78a4d yaması ile giderilebilmektedir.

S0 · daybreach-canonical S1 · cvelist

Show the technical text from the sources

A vulnerability was determined in a2aproject a2a-rs up to 0.4.3. This issue affects some unknown processing of the file a2a-server/src/error.rs. Executing a manipulation can lead to information exposure through error message. The attack can be executed remotely. This patch is called 713b943af94ab2d521d483b841618b97a2e78a4d. A patch should be applied to remediate this issue.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X

CWE: CWE-209, CWE-200

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-113705 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	a2aproject	a2a-rs	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
6.9	CVSS V4_0	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X	CVE CNA
6.9	CVSS V40	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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:X/V:X/RE:X/U:X	NVD
5.3	CVSS V3_1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C	CVE CNA
5.3	CVSS V3_0	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C	CVE CNA
5.3	CVSS V31	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	NVD
5.0	CVSS V2_0	—	AV:N/AC:L/Au:N/C:P/I:N/A:N/E:ND/RL:OF/RC:C	CVE CNA
5.0	CVSS V2	—	AV:N/AC:L/Au:N/C:P/I:N/A:N	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

4 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

CNA çözüm referansı

Open source

cvelist

CNA çözüm referansı

Open source

reference

Yama veya çözüm referansı

Open source

reference

Yama veya çözüm referansı

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-113705 is associated with the following CWEs:

CWE-209: Common Weakness Enumeration Entry CWE-209 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-113705 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

UserGerekmiyor

Official Sources and Advisories

VDB-422867 | a2aproject a2a-rs error.rs information exposurevendor-advisory VDB-422867 | CTI Indicators (IOB, IOC, TTP, IOA)vendor-advisory CVE-2026-113705 | CVE Analysis and Reportvendor-advisory Submit #1014888 | a2aproject a2a-rs a2a-server-lf ≤ 0.4.3 CWE-209vendor-advisory https://github.com/a2aproject/a2a-rs/pull/127patch https://github.com/a2aproject/a2a-rs/commit/713b943af94ab2d521d483b841618b97a2e78a4dpatch https://github.com/a2aproject/a2a-rs/vendor-advisory

CVSS Vector Radar Chart

6.9 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)None

Yama doğrulandı

4 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

a2aproject

Weakness Type (CWE & CAPEC)

CWE-209 CWE-200

Similar Vulnerabilities

7.5

CVE-2026-111765A2A Java SDK: Android synchronous POST forwards credentials across authorities after incomplete redirect fix

Vendora2aproject Producta2a-java+2 etkilenen

Patch status unknown11 h ago

7.5

CVE-2026-111764A2A Java SDK has a fail-open default task authorization

Vendora2aproject Producta2a-java+2 etkilenen

Patch status unknown11 h ago

6.9

CVE-2026-113704a2aproject a2a-rs Push Notification push_notification_sender.rs HttpPushSender server-side request forgery

Vendora2aproject Producta2a-rs

Patch verified4 h ago

5.8

CVE-2026-111761A2A Java SDK has Server-Side Request Forgery (SSRF) in push-notification delivery

Vendora2aproject Producta2a-java+2 etkilenen

Patch status unknown12 h ago

5.7

CVE-2026-111763A2A Java SDK send client credentials under server-controlled HTTP header name, enabling leakage via redirect

Vendora2aproject Producta2a-java+2 etkilenen

Patch status unknown11 h ago

5.7

CVE-2026-111762A2A Java SDK: Push notification credentials logged in cleartext on protobuf parse failure

Vendora2aproject Producta2a-java+2 etkilenen

Patch status unknown12 h ago

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free key Documentation

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-113705"

a2aproject a2a-rs error.rs information exposure

Impact on My Inventory

Vulnerability description

DayBreach AI Explanation

Short explanation

What should be done?

IMPACT: Affected Products and Software

Affected Products

RED HAT CSAF/VEX: Product Impact Check

SCORING: CVSS from Multiple Sources

CVSS Scores

Patch and Remediation Guide

Solution & Remediation Advisory

Public exploit and active exploitation status

Verified exploit intelligence

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

Common Attack Pattern Enumeration and Classification (CAPEC)

Attack Vector and Accessibility

Official Sources and Advisories

CVSS Vector Radar Chart

Vulnerability Scoring Details

Weakness Type (CWE & CAPEC)

Similar Vulnerabilities

Get this vulnerability through the API

DayBreach

Glossary & Reference

Directories & Feeds

RSS & Integration